Mathematics
Math on Lessons runs from first counting at ages 3 to 5 through every school year to first-year university. It covers number, shape and space, algebra, data and chance, and calculus. Topics include fractions, the Pythagorean theorem, quadratic equations, math for the Israeli bagrut at three, four and five units, and linear algebra. Lessi, an AI teacher, teaches each one live.
- Topics
- 101
- Ages
- Early years – Grade 12
- Areas
- 5
Areas of Mathematics
By age
Topics in Mathematics25–48 of 101
- How to find parallel and perpendicular slopes?To find parallel and perpendicular slopes, first write the given line in slope-intercept form, y = mx + b, to identify its slope, m. Parallel lines have identical slopes,…Read the topic
- How do you find the distance from a point to a line?You find the perpendicular distance from a point (x₀, y₀) to a line written in general form Ax + By + C = 0 using the formula d = |Ax₀ + By₀ + C| / √(A² + B²). The…Read the topic
- How do you find the center and radius of a circle?To find the center and radius of a circle, write its equation in standard form: (x - h)^2 + (y - k)^2 = r^2. The center is the point (h, k) and the radius is r, which is…Read the topic
- How do you find the points of intersection between a line and a circle?To find the points of intersection between a line and a circle, solve the linear equation for one variable and substitute it into the circle's equation. This forms a…Read the topic
- How do you find the equation of a tangent to a circle at a given point?To find the equation of a tangent to a circle at a given point, first find the circle center. Calculate the slope of the radius connecting the center to the contact…Read the topic
- How to prove a quadrilateral is a parallelogram with coordinates?To prove a quadrilateral is a parallelogram with coordinates, show either that both pairs of opposite sides have equal slopes, or that the two diagonals share the exact…Read the topic
- How do fractional exponents work?A fractional exponent works by representing both a power and a root at the same time. In an expression like x^(m/n), the denominator n indicates which root to take, and…Read the topic
- How to solve exponential equations with the same base?When an exponential equation shares the same base on both sides, set the exponents equal to each other using the one-to-one property and solve for the variable. If terms…Read the topic
- How do you write an exponential growth and decay function?To write an exponential growth and decay function, use the formula y = a(b)^x, where a is the starting amount, b is the base or factor, and x is the number of time…Read the topic
- How do you evaluate logarithms?Evaluating a logarithm means finding the exponent that turns the base into the number inside. For log base 2 of 32, find the power that turns 2 into 32. Because 2 to the…Read the topic
- What are the laws of logarithms?The laws of logarithms are algebraic rules used to simplify expressions. The product rule states that log_b(xy) = log_b(x) + log_b(y). The quotient rule states that…Read the topic
- How to solve exponential equations with logarithms?You can solve an exponential equation by isolating the exponential term, taking the common or natural logarithm of both sides, and applying the power property to bring…Read the topic
- How to graph exponential and logarithmic functions?To graph an exponential function y = b^x, plot the y-intercept (0, 1), sketch a curve approaching the horizontal asymptote y = 0, and rise if b > 1 or fall if 0 < b < 1.…Read the topic
- How do you find the first term and the common difference from two given terms?To find the first term and common difference, divide the difference between the two term values by the difference between their position numbers. This division gives the…Read the topic
- When does an infinite geometric sequence have a finite sum?An infinite geometric sequence can have a finite sum only when the absolute value of the common ratio is strictly less than one (|q| < 1, and q is not zero). In this…Read the topic
- When do you use the sine rule and when the cosine rule?Use the sine rule when you know a matching pair—a side and its opposite angle—plus one other side or angle. Use the cosine rule when you have no complete opposite pair:…Read the topic
- How do you solve trigonometry questions in a trapezium or pyramid?To solve trigonometry in a trapezium or pyramid, add an auxiliary line to isolate a triangle. In a trapezium, drop a height or draw a diagonal. In a pyramid, connect the…Read the topic
- What is the order of operations in a full investigation of a polynomial?The standard order of operations in a full polynomial investigation is: identify the domain, find the axis intercepts, calculate the derivative, set the derivative to…Read the topic
- How do you find the largest area you can fence with a given length of fence?To find the largest area with a fixed length of fence, write the area formula using length and width. Use the perimeter constraint to express one variable in terms of the…Read the topic
- How do you find the area enclosed between two graphs?You find the area between two graphed curves by integrating the upper function minus the lower function over their shared interval. First, set the two equations equal to…Read the topic
- What changes in the calculation when you draw without replacement?When you draw without replacement, the total count of items decreases after every pick, reducing the denominator by one each time. If the selected item matches the target…Read the topic
- How do you turn a word problem into an equation?To turn a word problem into an equation, write down what your unknown stands for in one line. Next, translate each sentence into an algebraic expression rather than…Read the topic
- When do you use a distance-speed-time table versus the work rate method?Use a distance-speed-time table whenever an object moves across a physical distance, applying the rule that distance equals speed times time. Use the work rate method…Read the topic
- How do you find the equation of the line through two given points?First find the slope m by dividing the difference in y-coordinates by the difference in x-coordinates, keeping the points in the same order. Next, substitute m and one…Read the topic
Private teachers for Mathematics
Teachers on Lessoons, online or face to face. Each profile opens on the Lessoons site.
Featured teacher דביר הראלMathematics teacher₪200 / hourרמת גןבואו להתחיל איתי את השנה החדשה בתחושת ביטחון עצמי והבנה מעמיקה של החומר! אצלי גדלים מנצחים. אני הייטקיסט בעל רקע רב שנים בהוראת מתמטיקה בתיכון, מדעי המחשב ואנגלית.Full profile
אבירם יעקביאןMathematics teacher₪230 / hourראשון לציוןבוגר מתמטיקה בהצטיינות מהטכניון, מרצה ומתרגל מצטיין. בעל ניסיון עשיר ורב שנים. מלמד מתמטיקה בגובה העיניים, סבלני ואיכפתי:)Full profile
יוחאי אMathematics teacherרמת גןסטטיסטיקאי ומוסמך MBA מסייע בעיבודים סטטיסטיים ומעביר שיעורים פרטיים (ליחיד או לקבוצות קטנות).Full profile
גל חכם אהרוןMathematics teacher₪150 / hourירושליםבוגרת תואר ראשון במשפטים ובכלכלה מהאוניברסיטה העברית, ומרצה במכינה האוניברסיטאית של האוניברסיטה העברית.Full profile
אופיר מאגדיMathematics teacher₪200 / hourתל אביב -יפופרונטלי+ZOOM. הכנה מהירה ותכליתית לבחינה! מורה פרטי מצוין!!! רק למקצועות: המימון, ניהול פיננסי, שוק ההון ושמאות מקרקעין. יש מאות המלצות!Full profile
ראובן לוריאMathematics teacher₪145 / hourנתניהנעים מאוד, ראובן :) הייתי מתכנת עד לפני שנתיים, פרשתי כדי להתמקד בהוראה פרטית מותאמת אישית.Full profile
נועם חביהMathematics teacher₪100 / hourחיפהשמי נועם, גרה בקריות, מורה פרטית למתמטיקה מרמת ביסודי עד לרמת הגשה לבגרויות.Full profile
נועה טלMathematics teacher₪130 / hourתל אביב -יפומורה פרטית לביולוגיה, מתמטיקה ומדעי המחשב. BSc בביולוגיה ומדעי המחשב + MSc בהנדסה (אונ׳ תל אביב)Full profile
About Mathematics
Math here follows the Israeli school years, one step at a time. Young children count to five on their fingers, find one more and one less, and name circles, squares and triangles. In grades 1 to 6 they work with numbers to 20 and to 100, multiplication and division, fractions, decimals and percentages, and the area and perimeter of a shape.
From grade 7, letters join the numbers. Students solve linear equations, then quadratic equations, and meet the Pythagorean theorem and trigonometry in the right triangle. High school brings probability, derivatives, and the bagrut courses at three, four and five units. For first-year university there are single-variable calculus, linear algebra, and statistics and inference.
Every topic is a live lesson with Lessi, an AI teacher. Lessi explains on a board, out loud, stops for short quizzes, and moves at the student's pace. When a homework question gets stuck, Ask Lessi can answer it. The first 60 minutes are free with an account, and the topic pages have free printable worksheets.
Common questions
What ages is the math here for?
From age 3 to university. The early years start with counting and shapes for ages 3 to 5. Then every school year from grade 1 to grade 12 has its own topics, from numbers to 20 up to the bagrut courses. First-year university students will find calculus, linear algebra, and statistics and inference.
Can my child learn algebra online with Lessi?
Yes. Algebra starts in grade 7 with turning words into expressions and solving linear equations with the balance principle. In grade 9 it moves on to factoring, the quadratic formula and the parabola. Lessi teaches each step live, on a board and out loud, and checks understanding with short quizzes before going on.
Are there free math worksheets?
Yes. Each math topic page has free printable worksheets, so a child can practice on paper away from the screen. They follow the same topics as the lessons, from counting and times tables to fractions, equations and trigonometry.
Does it help with the math bagrut?
There are courses for the math bagrut at three and four units in grade 11 and at five units in grade 12. They cover topics such as sequences, the sine and cosine rules, investigating a function through its derivative, trigonometric equations and the natural logarithm. Lessi works through them with the student, at the student's pace.
How much does it cost to try?
The first 60 minutes of lessons with Lessi are free with an account. Ask Lessi answers math questions free with an account too, from the same free minutes. The printable worksheets on the topic pages are free.