The Doorbell Rang

Pat Hutchins

Australian Curriculum:  Description

Number and Algrbra – Number and Place Value – Develop efficient mental and written strategies and use appropriate digital technologies for multiplication and for division where there is no remainder (ACMNA076)

Teaching ideas
Students could investigate other numbers that divide equally. What if the original batch had been 24/36/48. How would that have been shared between the guests (2, 4, 6, 12)

A Remainder of One

Elinor J Pinczes

Australian Curriculum:  Description

Number and Algebra : Number and Place Value – Solve problems involving division by a one digit number, including those that result in a remainder (ACMNA101); Investigate index notation and represent whole numbers as products of powers of prime numbers (ACMNA149)

Teaching ideas
* Have students mathematically represent the ideas in the book. i.e. concrete with actual bugs, representational with tally marks and abstract would be the mathematical numbers and symbols (25 ÷ 2 = 12 r1; 25 ÷ 3 = 8 r1; 25 ÷ 4 = 6 r1; 25 ÷ 5 = 5). Year 7s could use this as an introduction to prime numbers and non-prime numbers. What are the factors of 24 and 25.