2

3

2

Keywords:

National Standards

Properties of zero

addition

additive identity

discussion

inverse

subtraction

Students explore the additive identity by deciding whether addition and subtraction number sentences are true or false.

2

3

2

Keywords:

National Standards

Properties of zero

addition

additive identity

discussion

inverse

subtraction

3

4

1

Keywords:

Multiplication

National Standards

division

equations

Students work out the correct answers to arithmetic problems given an incorrect solution.

3

1

Keywords:

National Standards

addition

equality

equations

money

subtraction

Students solve problems comparing and balancing amounts of money.

3

0

Keywords:

Multiplication

National Standards

combinations

equality

linear equations

relationships

Students explore multiplicative relationships by completing multiplication equations.

3

0

Keywords:

Properties of zero

addition

additive identity

subtraction

Students explore the additive identity by completing open number sentences.

3

0

Keywords:

addition

additive identity

subtraction

Students exploit the additive identity property to solve problems.

3

0

Keywords:

addition

commutativity

equality

Students use the commutative property to find missing numbers in equations and explain the property.

3

1

Keywords:

addition

equality

Students complete open number sentences to show their understanding of equality.

3

0

Keywords:

addition

discussion

equality

Students explore the concept of equality by deciding whether addition sentences are true, false or not proper number sentences.