Signal M5

Limitless MT4 is a universal indicator suitable for every beginner and experienced trader. works on all currency pairs, cryptocurrencies, raw stocks Limitless MT4 - already configured and does not require additional configuration And now the main thing Why Limitless MT4? 1 complete lack of redrawing 2 two years of testing by the best specialists in trading 3 the accuracy of correct signals exceeds 80% 4 performed well in trading during news releases Trading rules 1 buy signa

This indicator prepared by using 311,1298 days Haskaya Trend Bandse and Calculates the strand ADX.    This system can be used for 5M time frame.     This system is for Long term and profitable.    Signals are shown as arrows. as an optional,    you can set a voice alarm or email notification    You can fins our other products from link : https://www.mql5.com/en/users/drbastem/seller    Also, you can ask all your questins from email : haskayafx@gmail.com or mobile : +90 530 867 5076 or @Meh

Result look on  https://t.me/BonosuProBinary Pair : All Forex Pairs Time Frame : M1 Expaired : 1-2 Minutes Trade Time Once Time a Day Backtester, Alert Avaliable Average Signals Generate 5 - 20 Signals All Pair A Day Broker Time Zone GMT+3 Default Setting [Example Broker GMT+3 : Alpari, FBS, XM] Support Broker : Deriv, IQOption, Alpari, Binomo, Olymtrade, Qoutex, GCoption, etc Support Auto Trading : MT2 Trading, Binary Bot, Intrade Bot, Binomo Bot, Olymptrad Bot, MX2 trading, Price Pro, etc Ind

Result look on  https://t.me/BonosuProBinary Pair : All Forex Pairs Time Frame : M1 Expaired : 1-2 Minutes Trade Time Once Time a Day Backtester, Alert Avaliable Average Signals Generate 5 - 20 Signals All Pair A Day Broker Time Zone GMT+3 Default Setting [Example Broker GMT+3 : Alpari, FBS, XM] Support Broker : Deriv, IQOption, Alpari, Binomo, Olymtrade, Qoutex, GCoption, etc Support Auto Trading : MT2 Trading, Binary Bot, Intrade Bot, Binomo Bot, Olymptrad Bot, MX2 trading, Price Pro, etc Ind

We publish the indicator as a useful tool in trading and call this indicator the "Swiss Army Knife" because it provides many possibilities and combinations to help understand the material on the "Masters of Risk" trading system. The indicator itself is not part of the tools used in the "Masters of Risk" trading system. The indicator consists of 3 separate multi-timeframe indicators, which in combination with each other help to reduce the "noise" of false signals. The first of the indicators ar

Indicator for binary options arrow is easy to use and does not require configuration works on all currency pairs, cryptocurrencies buy signal blue up arrow sell signal red down arrow tips do not trade during news and 15-30 minutes before their release, as the market is too volatile and there is a lot of noise it is worth entering trades one or two candles from the current period (recommended for 1 candle) timeframe up to m 15 recommended money management fixed lot or fixed percentage of the depo

Impulse fractals indicator - is counter-trend oriented complex market fractal pattern.  Market creates bull/bear impulse, trend starts, fractals on impulsed wave are an agressive pullback signals. Buy arrow is plotted when market is bearish and it's impulse showed up-side fractal, and sell arrow is plotted when market is bullish and it's impulse showed dn-side fractal. Main indicator's adjustable inputs : impulsePeriod - main period of impulse histogram  filterPeriod  - smoothes impulse accordi

Skalping instant indicator. The signal to purchase or sale of the basement in conjunction with the value of the indicator arrow. A strong signal is considered when the arrow and the basement indicator that displays four timeframes coincide in the forecast. This indicator contains many algorithms and tasks that have been reduced to one result, which the Skalping instant indicator gives, namely, informs the trader about the direction of the market. Thus, he gives 1. Scalping signal (Figur

This Indicator is use the ZigZag to calculate the Upper and  Lower Bound and the uptrend and the downtrned. Red for downtrend, Green for uptrend and Yellow is for the horizontal trend this horizontal trend also bookmarked the upper limited and the lower limited the the price swings.  Or in simple the Support and the Resistance level. However, You may use the Heikin Ashi to confirm the trend of the buy sell signal above. I cannot guarantee the win rate, Nevertheless, you must study well the timef

This   Real Magic Trend   indicator is designed for signal trading. This indicator generates trend signals. It uses many algorithms and indicators to generate this signal. It tries to generate signals from the points with the highest trend potential. This indicator is a complete trading product. This indicator does not need any additional indicators. The indicator is never repainted. The point at which the signal is given does not change.      Features and Recommendations Time Frame

The indicator allows you to trade binary options. The recommended time frame is М1 and the expiration time is 1,2,3 minutes. The indicator suitable for auto and manual trading. A possible signal is specified as a arrows above/under a candle. You should wait until the candle closes! Arrows are not re-painted Trade sessions: TOKYO section (Half-end) Currency pairs: USD/JPY Working time frame: M1 Expiration time: 1,2,3 minutes. The indicator also shows good results when using the martingale strateg

Трендовый индикатор МТ4, дающий точные сигналы для входа в сделки. Работает без перерисовки и запаздываний! Только покупателем данного индикатора прилагается основной фильтр,обращайтесь в личку.   Идеальные точки входа в сделки для     валют, крипты, металлов, акций, индексов . Наилучшие результаты на таймфрейме M30 и выше! Наш канал в Telegram  |   Версия индикатора для MT5 Скоро   видео  for indicator Большинство трейдеров улучшают торговые результаты в первую неделю торговли с и

Arrows appear after Reversal-Pattern and when the confirmation-candle reaches its value, it won't disappear (no repaint). but with fix settings no additional settings necessary Entry : immediately after arrow Stop loss : a few pips above the high of the arrow - candle / below the low of the arrow - candle Take Profit : at least the next candle / move to break even after candle closed / trail the SL works on : Major Forex-pairs / M15 and higher time-frames The Value of the  confirmation-candle =>

Some informations on the chart with the single attachment. RangeBorder Buy Sell (RBBS) Non Repaint Indicator will provide trend line, buy sell arrows,reversal arrows, range channel, order exit area,high average price line and low average price line.All arrows and lines don't repaint and not lagging. Once candle closed it won't  repaint. Reading Indicator: 1. Small Stars , Indicates oversold and overbought with certain logic and price may reverse when this small star triggers. Useful to identif

This is a Price Action/momentum based strategy know as the 3Bar_Play and it is based on the 3Bar candlestick pattern formation. Additional indicators are added for filter and confirmations prior to popping up buy/sell signal arrows. It can be traded either in an uptrend, downtrend or sideways market.  Indicators added include: Stochastic - Momentum Fish - Trend ATR - Volatility which also clearly defines Stop-Loss placement at base of signal arrow (using the ATR Stop-loss method). Risk to Reward

This indicator prepared by using 57 days moving averagr and least square method. It can only work for 1 hr time interval. Once a signal created. It is creating order and 2 limit orders. It works in CFD pairs as well as in Forex pairs. You can fins our other products from link : https://www.mql5.com/en/users/drbastem/seller Also, you can ask all your questins from email : haskayafx@gmail.com or mobile : +90 530 867 5076 or @MehmetBastem on telegram application This system is for Long term and pr

The Channel Arg Control indicator, in addition to lines, reflects entry signals in the form of arrows. But how to do that? At first glance, this is not an easy task. But not for the Channel Arg Control indicator, this indicator will tell you whether you have configured the indicator correctly, while you can specify the history interval in the bars that interests you. And yet, how does the indicator tell you? Look at the numbers on the chart near the arrows! This is exactly what you thought, the

2 Copies left.. Royal Trend Indicator will close for public from 01 September 2022. Royal Trend Indicator   This is a Trend Indicator for MT4 Providing Signal To Enter The Position At The Best Time    It can be applied to any financial assets:  F orex, Cryptocurrencies, Metals, Stocks, Indices .    Benefits of the Royal Trend Indicator Entry Signals At The Best Possible Level The indicator algorithms allow you to find the ideal moments to enter a deal (buy or sell an asset), which increa

Lord Auto Fibonnaci is a free indicator for Meta Trader, in order to show the most famous chart in the financial market known as "Fibonnaci". As we can see in the images below, the fibonnaci table will automatically analyze the graph for you, with trend factors through percentage, almost infallible use, you can always work when the percentage is low or high, start shopping and sales on time, great for analyzing entries! In the images below we can see an example in gold in H4, where we are a

This indicator is created by considering volume divergence with price that is outcome of Bollinger band and Envolpes indicators crossing. It won’t repaint.  It is providing 1 market and three pending orders.  If it is followed with patient, it is providing remarkable profit at the end.  This indicator will be on sale soon on expert advisor. Target is calculated for buy orders as follow 1. 50 pips standard 2. Top Bollinger band 3. Sell Signal Target is calculated for buy orders as follow 1. 50

Binary Options Support Resistance Indicator This indicator is designed for binary options trading and effectively shows retracements from support and resistance levels. Signals appear on the current candle. A red arrow pointing downwards indicates a potential selling opportunity, while a blue arrow pointing upwards suggests buying opportunities. All that needs adjustment is the color of the signal arrows. It is recommended to use it on the M1-M5 timeframes as signals are frequent on these timef

Rebalance Overlay Technology (Rebolt) enables the trader to visualize the flow of money from one chart to another chart. Rebolt Probability indicates the probability that money has flowed from one chart to another chart for a specified length of time over a number of intervals specified by the user. When Rebolt reads Cyan or Blue these are buying signs good for the length of time specified by the user or until a conflicting signal arises. When Rebolt reads Violet or Red there are selling signs

Free Market structure zig zag to assist in price action trading the screenshots describe how to use and how to spot patterns new version comes with alerts, email alert and  push notification alert can be used on all pairs  can be used on all timeframes  you can add additional confirmation indicators the indicator shows you your higher high and low highs as well as your lower lows and lower highs  the indication makes price action analysis easier to spot.

Unleash the Power of Profitable Binary Option Trading with the "Eagle Eye Indicator" for MT4 Prepare to embark on a game-changing journey in the realm of binary option trading with the awe-inspiring "Eagle Eye Indicator" for MetaTrader 4 (MT4). This revolutionary tool is poised to revolutionize your trading experience, infusing it with laser-focused precision and unrivaled profitability. Step into a world where the boundaries of potential are shattered and profits are maximized, thanks to t

This system never paints.   This system created by using Envolpes bands and reverse bar count.   This indicator is only working in M5 period.   This system is for long term and profitable.   Signals are shown as arrows. as an optional limit orders.   You can set a voice alarm or email notification.   You can fins our other products from link : https://www.mql5.com/en/users/drbastem/seller   Also, you can ask all your questins from email : haskayafx@gmail.com or mobile : +90 530 867 5076 or @Meh

**Introducing the Binary Smart System: Your Ultimate Trading Companion** The Binary Smart System is not just an indicator; it's a sophisticated trading tool meticulously designed to empower traders with pinpoint accuracy and timely signals across various markets. Built on a foundation of cutting-edge algorithms and an exhaustive collection of technical indicators, this system is your key to unlocking trading success. **Indicator Components:** 1. **Moving Average Percentage (MAP):** This c

Night Ghost - Arrow indicator for binary options. This is a reliable assistant to you in the future! - No redrawing on the chart -Works great on EUR/USD currency pairs! -Indicator accuracy up to 90% (Especially at night) -No long setup required (Perfectly set up for Binary Options) - Not late signals - The appearance of a signal on the current candle -Perfect for M1 period (No More!) - Eye-friendly candle color (Red and Blue) -Installed Alert Working with it: - Blue arrow

WPR by Profile, or WPR for Professionals Geo_WprPro is one of the well-known currency profile indicators. It simultaneously displays two WPR indicators with different parameters in the matrix form on all timeframes of multiple currency pairs forming the currency profile . As follows from the description, " WPR is a leading indicator that often goes ahead of the price chart. The oscillator frequently reaches extreme values before the price reversal as if anticipating that event: it almost always

City Lights monitors the formation of the trend and helps the user to identify the entry points. Thanks to this data, the investor is able to predict the situation and form a strategy for the game. It is trend signals that allow clients of brokerage companies to achieve the efficiency of using trading instruments and achieve the best profitability. Correct calculation of the current trend is the key to successful asset trading in the foreign exchange market. It is important to understand that

Algorithmic Signals indicator   is not an indicator but a strategy that generates entry/exit signals. The entry arrows are formed after multiple conditions are met. The indicator is using an   Adaptive Algorithm   which automatically adjust to the symbol and time frame (see the screenshots below) . Signals can be used for scalping or even trend trading. Main features:- Non repainting signals Entry signals Exit signals Alert for price reaching 1 x ATR(14) (could be utilized for initial take prof

note: this indicator is for METATRADER4, if you want the version for METATRADER5 this is the link: TRENDMAESTRO recognizes a new TREND in the bud, he never makes mistakes. The certainty of identifying a new TREND is priceless. DESCRIPTION TRENDMAESTRO identifies a new TREND in the bud, this indicator examines the volatility, volumes and momentum to identify the moment in which there is an explosion of one or more of these data and therefore the moment in which prices have strong probability of f

Introducing the Miraculous Forex Indicator: Unleash the Power of Precision Trading Are you tired of searching for the perfect forex indicator that truly delivers exceptional results across all time frames? Look no further! The Miraculous Forex Indicator has arrived to revolutionize your trading experience and propel your profits to new heights. Built upon a foundation of cutting-edge technology and years of meticulous development, the Miraculous Forex Indicator stands as the pinnacle of str

Rental/Lifetime Package Options and Privileges' * For optimum results the yearly or lifetime package is suggested due to live training and Discord  channel trading with the  creator! Rent Monthly Six Months   Yearly/Lifetime Weis Wave with Speed with Alert+Speed Index x x x Manual  x x x Quick Set up Video x x x Blog x x x Lifetime Updates x x x Setup and Training Material x x Free Rectangle Break Alert Tool      x Discord Access Channel "The SI traders" x 2-hour live methodology traini

FULL FOREX MARKET VIEW Dashboard Indicator This is a custom indicator created to give Traders a full view of what is going on in the market. It uses a real time data to access the market and display every bit of information needed to make successful trading. INSTALLATION : Before attaching this Indicator to your window chart, go to your MT4's Market Watch panel and HIDE all the Currency pairs you don't need or trade and leave the rest there. The reason is that FFMV Dashboard will DISPLAY ALL the

Idea: RSI ( Relative Strength Index) and CCI ( Commodity Channel Index ) are powerfull to solved the market.  This indicator has Smoothed Algorithmic signal of RSI and CCI. So that, it separates the market into buy and sell zones, these areas are marked with arrows, red for downtrend, green for uptrend. This algorithm has the effect of predicting the next trend based on the historical trend, so users need to be cautious when the trend has gone many candles. Please visit screenshots

This indicator is based on the mathematics of the great trader W.D. Ganna. With its help, you can easily find strong levels by analyzing swings to find the optimal entry point. The indicator works on all instruments and all timeframes. The indicator is fully manual and has control buttons. All you need to do is press the NEW button, a segment will appear, which you can place on any movement, swing or even 1 candle that you want to analyze. By placing the segment, press the OK button. A grid (th

What if God Created a Trade System? No miracles... Just see how mathematics can be effective in the market. We managed to combine technical analysis / price action into indicators, creating the best setup for trading, be it in Forex, Indices, or stocks. It took us 2 years to create something that really works, and now it's time for you to discover it. TrendX3 is a revolution in trend analysis. Based on advanced algorithms and real-time data, it provides valuable insights so that you can make inf

The breakout algorithm is a technique based on price, price features, to shape a breakout strategy. The strategy in this indicator will not be redrawn (none-repaint indicator), it is suitable for short or long term traders In the screenshot is the EURUSD pair, these currency pairs, commodities or stocks, it have similar strength *Non-Repainting (not redrawn) *For Metatrader4 Only *Great For Scalping *Great For Swing Trading *Arrow Entry, Green is Long, Red is Short *Works On Any Timeframe *Work

"Dragon's Tail" is an integrated trading system, not just an indicator. This system analyzes each candle on a minute-by-minute basis, which is particularly effective in high market volatility conditions. The "Dragon's Tail" system identifies key market moments referred to as "bull and bear battles". Based on these "battles", the system gives trade direction recommendations. In the case of an arrow appearing on the chart, this signals the possibility of opening two trades in the indicated directi

Intro to APAMI, PROfessional edition Trace exactly how far prices trend between two price levels with fractional pip precision, while qualifying price movement between the same price levels. Completely automate when trends change direction and volatility, without any lag .  This is possible because the Accurate Price Action Measurement Indicator (APAMI) actually does what no other indicator can:  measure price distance between two points and simultaneously qualify the price action that occurs

Fibonacci Retracements Pro The Fibonacci Retracements Pro is a powerful yet easy to use indicator. It automatically plots all the important Fibonacci retracement and extension levels for you. FRP is dynamic powerful and seamlessly adjusts to whatever timeframe you are analyzing. Fibonacci Retracement Pro is optimized for ALL timeframes and ALL Currency pairs, Indices, Commodities, and Cryptocurrency pairs. Trade with improved confidence and maximize your success rate. Benefits Dynamic and Power

Dear Onis, This Indicator is used for   GBPUSD, US30 and GOLD on 1-Min Chart . For US30 , Depending on your broker, Minimum Lot Size will differ from 0.01 to 1.0 lots. My Current Account is trading at 1.0 lots at $1 per point . Please check with your Broker what's the Margin Required for your Minimum lot sizes before you trade on your Real account. I have Forward Tested the indicator for around 6 months before releasing it to the public. ( No Demo is available for the Indicator, Strategy

VTrende Pro MT4 - MTF indicator for trend trading with a display panel for MT5 *** Videos can be translated into any language using subtitles (video language - Russian) Although the signals of the VTrende Pro indicator can be used as signals of a full-fledged trading system, it is recommended to use them in conjunction with the Bill Williams TS. VTrende Pro  MT4 is an extended version of the VTrende indicator. Difference between Pro version and VTrende: - Time zones - Signal V - signal 1-

Clidro FX is a complete trading system designed and developed by Auxrum Analytics targeting the EURUSD, USDJPY, and GBPUSD FX pairs. It is currently available to MetaTrader 4 users. The Clidro FX algorithm, along with the optimized money-management and order-management rules sets up the basis for excellent trading results consistently over an extended period of time. The fundamental premise of the system is that each FX pair displays its unique quantitative characteristics while oscillating thro

Automatic, live & interactive picture of all trendlines. Assign push, email and sound alerts to the lines of your choice and be informed about price rollback, breakout, rollback after breakout, number of rollbacks, line expiration by double breakout. Correct, drag or delete the lines and interactively tune the line system. https://youtu.be/EJUo9pYiHFA . Chart examples https: //www.mql5.com/en/users/efficientforex Price Interaction Events All events are effective immediately and only after on

The indicator displays the probable ( Support and resistance ) levels. The indicator draws horizontal and trend levels of support and resistance. The indicator settings: Trends - the mode for displaying trend lines or horizontal lines of support and resistance Yes - display trend lines only No - display horizontal lines only UseResource - use the resources built into the indicator. Yes - use the ZigZag indicator from the resources of the product. No - use a custom ZigZag indicator. HistoryBar -

The [GRAFF] III manual trading system is based on multiple MetaTrader (MT4) indicators. Together, the entire PACK of GRAFF III indicators makes an advanced trading tool. The system consists of over 20 different custom-built indicators which have been carefully selected and tested in the long term to produce strong and efficient trading signals. The particular indicators are based on different mathematical formulas, so the entire system is calibrated to remove false signals from its own indicator

You can fins our other products from link : https://www.mql5.com/en/users/drbastem/seller   Also, you can ask all your questins from email : haskayafx@gmail.com or mobile : +90 530 867 5076 or @MehmetBastem    on telegram application This indicator is used to determine the trend. Standard Osma indicator is used. It has the indicator warning system: beep, e-mail and has three types of alerts, including messages to mobile phone. It shows the best performance on the chart of 5 minutes. When the

You can fins our other products from link : https://www.mql5.com/en/users/drbastem/seller   Also, you can ask all your questins from email : haskayafx@gmail.com or mobile : +90 530 867 5076 or @MehmetBastem    on telegram application This indicator is used to determine the trend. Standard Three Moving Average and ADX indicators are used. It has the indicator warning system (audio, e-mail) and three types of alerts, including messages to mobile phone. It shows the best performance on M5. When

This indicator is used to determine the trend. Standard Three Moving Average and ADX indicators are used. It has the indicator warning system (audio, e-mail) and three types of alerts, including messages to mobile phone. It shows the best performance on M5. When the trend value reaches the value set, the warning system is activated. This indicator works only with Forex symbols. Inputs SoundAlarm = true - Sound Alert Sendmail=true - Send an e-mail in case of a buy or sell signal Sendnotificatio

You can fins our other products from link : https://www.mql5.com/en/users/drbastem/seller   Also, you can ask all your questins from email : haskayafx@gmail.com or mobile : +90 530 867 5076 or @MehmetBastem    on telegram application This indicator is used to determine the trend. Standard MACD indicator is used. It has the indicator warning system: beep, e-mail and has three types of alerts, including messages to mobile phone. It shows the best performance on the chart of 5 minutes. When the

The Smooth Price technical indicator is used for plotting a smoothed line as close to the price of the financial instrument as possible, and serves to eliminate its noise components. The indicator is part of the Monarch trading system, but here it is presented as an independent technical analysis tool. The indicator is based on the cluster digital filter , which, unlike the ClusterSMA , is applied directly to the price time series. Smooth Price does not redraw (except the very last, zero bar) an

This indicator offers a robust market analysis method centered around the concept of the 'Regression Channel Tool'. By harnessing this tool, traders can gain exceptional control over their chart's regression channel, enabling them to make more informed trading decisions. The Regression Channel Tool is a powerful instrument in a trader's toolkit. It's designed to provide valuable insights into price trends and potential support and resistance levels. The tool is especially effective for visualizi

A simplistic indicator informing a user on RSI divergence by sending messages to mobile device and email. The indicator draws 2 vertical lines, marking two RSI extrema that formed the divergence. You get the alert, open the charts and make a decision. The indicator does not show past divergences, thus when you attach it to a chart for the first time you see nothing. Graphics and alerts will appear as soon as divergences do. Drop it in Tester to see how it works. Parameters: RSIPeriod - number of

The Name Green Wall : Arrows hits a lot of TP, by changing the idea of non using SL as something bad, but instead use Small TP and a lot of free Margin and Patience. Use micro TP and a lot of Free Margin with this indicator on Forex. It also can be used with Binary Options. This strategy is intended to be traded Manually. This Indicator runs on Open Bar, arrows will delete when price are against it. The only Indicator Parameter is Alerts true/false, all the rest is included inside the code. Arro

Golden Monowave is monowave indicator, the monowave theory is one of Elliott wave approach and one of most complicate and accurate method. Golden Monowave can shortcut many major steps to identify and describe the monowave. It works on any timeframe and with any trading instrument, including currencies, indices, futures, etc. Input Parameters initial_Bars - set the initial number of bars to calculate. wave_color - select the color of the wave. label_color - select the color of labels. temp_lab

This indicator displays in a separate window the difference between the number of points which increased the price, and the number of points that decreased the price during the time interval specified in the settings. The time interval for calculation is expressed as the number of bars of the chart the indicator is attached to. This approach allows you to evaluate the movement direction (growth or fall) of the instrument's price, the strength of the movement and the size of the movement in point

NostradamusMT4 is a powerful indicator from the set of professional trader. The indicator is based on Andrei Spiridonov's original price calculation method (ESTIMATED PRICE) for the current candle price. Advantages The indicator does not redraw. It works on any timeframes. Works with any trading instruments. Perfectly suitable for scalping and trading binary options. Parameters Color - color of the ESTIMATED PRICE FUTURE line. How to work with the indicator The indicator forms the ESTIMATE

BinaryIndicator is a highly accurate indicator for trading binary options. It shows excellent results in scalping. This indicator is based in multifactor analysis of trend indicators, as well as confirmation oscillators, which in the end gives an increased accuracy of signals. Advantages of the indicator Increased accuracy of signals. Excellent results when trading binary options with a short expiration time from M30 to M1 . It works on any timeframes. Works with any trade symbols. Parameter

This indikator is used as a supporting indicator. its function is to find out the position of the price reflection position, but he cannot work alone, requires another set of indicators which will immediately be sold separately The principle of Supply And Demand can be used as a forex trading analysis tool. One way to use it is to rely on the balance zone as zone stops Supply And Demand and the trading system applied, as well as the legal basis for general supply and demand.

Hi. The main obstacle for multi timeframe traders or traders who use multiple indicators on multiple charts is when they want to do analysis on multiple pairs quickly. You can imagine if there are 3 or 10 charts that must be opened when you want to do analysis. and each chart has its own template. of course it will take a long time to replace one by one before analysis. how many opportunities are lost due to the time spent changing charts. or maybe when a mentor wants to explain to his students