
Explore algebra concepts by manipulating cardboard tiles to model integers, linear and quadratic expressions, and solve linear equations while proving identities like (a+b)^2 and (a+b)^3.
Using cardboard tiles, learn and visualize integers, positive and negative values, through addition and subtraction with zero pairs, before multiplying integers in the next video.
Use cardboard tiles to perform addition, subtraction, and multiplication with integers by arranging tiles in rows and columns and flipping signs to show negatives and positives, and anticipate algebraic expressions.
Use cardboard tiles to model algebraic expressions, flip for subtraction, and represent x, x^2, and constants to add, subtract, and simplify to results like 3x+3, x-4, and x^2-3x+2.
learn to multiply linear algebraic expressions using algebra tiles by forming a rectangle and reading the area as the product. practical examples show expanding (x+3)(x+2) and (x-1)(2x+3) to derive polynomials.
Learn to factor quadratic expressions using algebra tiles by forming neat rectangles, revealing factors such as x+1 and x+2, x-2 and x-3, or 2x+1 and x-2.
Learn to solve linear equations with algebra tiles, balancing both sides by adding units, and isolate x to reveal solutions such as x = 1 and x = 2.
Learn a card-based method to solve linear equations, using circular and rectangular cards to perform operations like multiply by three and add two, with examples such as 3x+2=8 and x-3=9.
Demonstrate algebraic identities with cardboard tiles by dissecting a square and rearranging to derive (a+b)^2=a^2+2ab+b^2 and (a-b)^2=a^2-2ab+b^2.
Explore the cube-based demonstration of the identity (a+b)^3 = a^3 + 3a^2b + 3ab^2 + b^3 using 27 cardboard cubes, breaks, and subtraction to unveil algebraic identities.
This course is intended for
(a) Teachers who want to use cardboard tiles in classroom activities to promote joyful math.
(b) Parents who want to engage with their children in exploring visual algebra in a playful way.
In this course, you will learn the following concepts in a fun and visual way by playing with a set of cardboard tiles
- Integer operations.
- Algebraic expressions - Representation and operations.
- Factorization.
- Solving linear equations.
- Algebraic identities - a visual proof.
There are 4 Quiz Sections encompassing around 20 fun questions to test your understanding of the concepts.
In this course, students will learn how to make their own set of cardboard tiles, discover why -1 x -1 is actually 1 in a visual way, why certain equations are called linear, what it means visually when we say factorization, understand how arithmetic and algebra are so similar conceptually, and finally understand how to visualize the different algebraic identities instead of just memorizing them.
Playing with cardboard tiles creates a strong conceptual foundation in the mind of the students which they can later build upon to visualize more advanced math concepts.
This course is specially curated by Professor Sundar Raj for primary grade students. Sundar Raj is a professor of mathematics, author as well as a math evangelist who has keen interest in developing hands on activities for children to make math exciting and fun. You can download some of his books for free at our official website.