Khan Academy (English - US curriculum)
Math by grade
Illustrative Mathematics
7th grade (Illustrative Mathematics)
Unit 6: Expressions, equations, and inequalities
Lesson 4: Reasoning about equations and tape diagrams (part 1)
Lesson 4: Reasoning about equations and tape diagrams (part 1)
Writing expressions word problems
Equation word problem: super yoga (1 of 2)
Equation word problem: super yoga (2 of 2)
Writing expressions word problems
