# INVESTIGATION

- Select 2, or an even number.
- Skip count forwards or backwards from the number.
- Are you saying the multiples of 2?
- Is 2 is a number in the skip counting number pattern?
- Are even numbers multiples of 2?
- Record your skip counting number pattern on a number line.
- How many are you repeatedly adding?

**Reflection: How can we count forwards by 2s?**

- Select an odd number.
- Skip count forwards or backwards from the odd number by 2.
- Are you saying the multiples of 2?
- Would 2 be a number in the skip counting number pattern?
- Are odd numbers not multiples of 2?
- Record your skip counting number pattern on a number line.
- How many are you repeatedly adding?
- Reflection: How can we count forwards by 2s?

**Reflection: How can we count backwards by 2s?**

- Select a number with 5 ones or zero ones.
- Skip count forwards or backwards from the number by 5.
- Are you saying the multiples of 5?
- Is 5 is a number in the skip counting number pattern?
- Record your skip counting number pattern on a number line.
- How many are you repeatedly adding?

**Reflection: How can we count backwards by 5s?**

- Select a number with 1, 2, 3, 4, 6, 7, 8 or 9 ones.
- Skip count forwards and backwards from the number by 5.
- Are you saying the multiples of 5?
- Would 5 be a number in the skip counting number pattern?
- Are numbers with 1, 2, 3, 4, 6, 7, 8 or 9 ones multiples of 5?
- Record your skip counting number pattern on a number line.
- How many are you repeatedly adding?

**Reflection: How can we count forwards by 5s?**

- Select 10, or a number with zero ones.
- Skip count forwards or backwards from the number by 10.
- Are you saying the multiples of 10?
- Is 10 is a number in the skip counting number pattern?
- Are numbers with zero ones multiples of 10?
- Record your skip counting number pattern on a number line.
- How many are you repeatedly adding?

**Reflection: How can we count forwards by 10s?**

- Select a number with 1, 2, 3, 4, 5, 6, 7, 8 or 9 ones.
- Skip count forwards or backwards from the number by 10.
- Are you saying the multiples of 10?
- Would 10 be a number in the skip counting number pattern?
- Are numbers with 1, 2, 3, 4, 5, 6, 7, 8 or 9 ones not multiples of 10?
- Record your skip counting number pattern on a number line.
- How many are you repeatedly adding?

**Reflection: How can we count forwards by 10s?**

# Problem Solving

Mary was counting forwards by 2s.

Her number pattern included the number 8.

What could her number pattern have looked like?

# Problem Solving

Mary was counting backwards by 2s.

Her number pattern included the number 8.

What could her number pattern have looked like?

# Problem Solving

Mary was counting forwards by 2s.

Her number pattern included the number 9.

What could her number pattern have looked like?

# Problem Solving

Mary was counting backwards by 2s.

Her number pattern included the number 9.

What could her number pattern have looked like?

# Problem Solving

Mary was counting forwards by 5s.

Her number pattern included the number 10.

What could her number pattern have looked like?

# Problem Solving

Mary was counting backwards by 5s.

Her number pattern included the number 10.

What could her number pattern have looked like?

# Problem Solving

Mary was counting forwards by 5s.

Her number pattern included the number 9.

What could her number pattern have looked like?

# Problem Solving

Mary was counting backwards by 5s.

Her number pattern included the number 9.

What could her number pattern have looked like?

# Problem Solving

Mary was counting forwards by 10s.

Her number pattern included the number 30.

What could her number pattern have looked like?

# Problem Solving

Mary was counting backwards by 10s.

Her number pattern included the number 30.

What could her number pattern have looked like?

# Problem Solving

Mary was counting forwards by 10s.

Her number pattern included the number 19.

What could her number pattern have looked like?

# Problem Solving

Mary was counting backwards by 10s.

Her number pattern included the number 19.

What could her number pattern have looked like?