HBS Math Support

Problem Solving

Videos

1. Solve word problems using bar models – LearnZillion
2. Solving comparison problems – LearnZillion
3. Three digit addition problems - Khan Academy
4. Three digit subtraction problems - Khan Academy
5. Math Vocabulary - Mashup Math

Three digit addition word problems (video) | Khan AcademyWork through a word problems that involve 3-digit addition.

Three digit subtraction word problems (video) | Khan AcademyWork through a word problems that involve 3-digit subtraction.

Virtual Manipulatives

1. Thinking Blocks
2. Bar Modelling - Mathsbot
3. Polypad - Mathigon

Thinking Blocks | Math PlaygroundModel and solve word problems using interactive tape diagrams.

Polypad – Virtual Manipulatives – MathigonVirtual manipulatives, dynamic geometry, graph plotting, data science and more: explore the ultimate mathematical playground!

Vocabulary

Sum
Difference
Bar Model

Teaching Resource

Problem Structures for Addition and Subtraction - Math Coach Corner

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