### Teaching and Group Activities for Understanding

**Day 1 Teaching**

Count in 10s from 0 to 100 using the counting stick, then in 100s from 0 to 1000. Count in 100s from different numbers. Count in 50s to 500, then to 1000. Write: 4, 54, 104, 154; explain that 4 + 50 = 54, 54 + 50 = 104, 104 + 50 = 154. Repeat with 23, 73, 123.

**Group Activities**

Use the in-depth problem-solving investigation ‘Dog Chews’ as today’s group activity.

Or, use these activities:

-- Play ‘Ping Pong’, alternating between counting in 100s and 50s to 1000.

-- Play ‘Jump 50, Jump 100’, counting on a given number of 100s or 50s.

**Day 2 Teaching**

Count in steps of 4 from 4 to at least 100, noting that the numbers are all even. Count in 8s to 96. Observe that these are also even. Explain how we find the digital root of a number; find digital roots of numbers in the 4x table.**Group Activities**

-- Find the digital roots of numbers in the 4 and 8 times table and beyond.

-- Play the compound leaves game, counting in 4s and 8s.

**Day 3 Teaching**

Show the first three numbers of a sequence: 28, 24, 20. Children describe the rule for this sequence and write the next three numbers. Discuss how sequences can decrease as well as increase. Show a sequence starting at 2, e.g. 2, 6, 10. Can children write the next three terms? Children create their own sequences, then extend: 2, 4, 8, 16.**Group Activities**

-- Play sequences card game, challenging a partner to spot the rule of a sequence and write the next three numbers.

---Play sequences game, identifying the rule for a given sequence of numbers.