TNSB - 8 - Maths :: Algebra

Go To: TNSB-Mathematics-Grade 8

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[Contributor - Preethi Saravanakumar]

Objective: To teach the students about algebraic expressions, performing addition, subtraction, multiplication and division of algebraic expressions. Learn to solve linear equations.

Subtopics to be covered:

1. Define Algebra.
2. Algebraic Expressions- Addition and Subtraction.
3. Multiplication of Algebraic Expressions.
4. Identities.
5. Factorization.
6. Division of Algebraic Expressions.
7. Solving Linear Equations.

Learning Outcome: Students can simplify algebraic expressions/ equations. Students know the concepts Monomial, Binomial, Trinomial, Polynomial, Degree of the Polynomial, Factorization and Linear Equation.

[Contributor - Kripa S]

http://www.textbooksonline.tn.nic.in/Books/Std08/Std08-II-MSSS-TM-1.pdf#page=6 (Tamil Medium)

http://www.textbooksonline.tn.nic.in/Books/Std08/Std08-II-MSSS-EM-1.pdf#page=6 (English medium)

[Contributor - Sumathi Sampath]

https://www.youtube.com/watch?v=pUrbcWA1bxY (Multiply two monomials with two variables)

[Contributor - Kripa S]

http://www.clipartkid.com/images/287/mathematics-solving-algebra-equation-classroom-clipart-vOm082-clipart.jpg (what is algebra)

https://www.mathsisfun.com/algebra/images/variable-constant.gif (variable, terms)

https://i.ytimg.com/vi/hK_LQaNDxi4/hqdefault.jpg (examples of equation)

https://userscontent2.emaze.com/images/814e43c0-30ed-4335-b6ac-d428ffac5544/daf7e0213128c586230e1c613e8581c0.png (example of variable in equation)

http://mrskortenhoevenmath.weebly.com/uploads/5/6/8/5/56854539/20950_orig.png (line, unlike terms)

http://tutorial.math.lamar.edu/Classes/Alg/Polynomials_files/eq0002MP.gif (degree of expression)

https://i.ytimg.com/vi/zat2KIJ-mFA/maxresdefault.jpg (value of expression)

http://media1.shmoop.com/images/algebra-ii/alg2_rational_graphik_3.png (how to frame expressions)

[Contributor - Kripa S]

1.Quiz: I have some chocolates with me. I gave 4 chocolates to my sister. I have 17 chocolates left. How many did I have in the beginning? Make an equation.

2. How many pens/ sticks you would need to make alphabet A? How many sticks you would need to make 10 As ? Repeat this rule for alphabets E, H, V, I

3. Play in pairs. One student ask the other to think of a number. Multiply the number by 2, then add 2, multiply 5, then add 5, multiply 10, then add 10. Ask the friend for answer. You can guess what the number is. Trick is ignore the units and ten's place digits. Consider the left digits, subtract 1 and that is the number thought by the student. Make an equation of this game

[Contributor - Preetha Sridharan]

https://drive.google.com/open?id=0BzNF2YyqQxJ-NV93bFI3Nm9sUzQ (Answer Key 1)

https://drive.google.com/open?id=0BzNF2YyqQxJ-bXJ2bHgtN0RzVGM (Answer Key 2)

https://drive.google.com/open?id=0BzNF2YyqQxJ-cFBwNnNrR2UtSGs (Answer Key 3)

[Contributor - Preetha Sridharan]

https://drive.google.com/open?id=0BzNF2YyqQxJ-NGt1ZEw3LXFBalU (Worksheet 1)

https://drive.google.com/open?id=0BzNF2YyqQxJ-TFV6YzBLNW1mcU0 (Worksheet 2)

https://drive.google.com/open?id=0BzNF2YyqQxJ-b2JGaVY0MG9uN0E (Worksheet 3)

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