Mathematics / Year 2 / Number and Algebra / Patterns and algebra

Curriculum content descriptions

Solve problems by using number sentences for addition or subtraction (ACMNA036)

Elaborations
  • representing a word problem as a number sentence
  • writing a word problem to represent a number sentence
General capabilities
  • Literacy Literacy
  • Numeracy Numeracy
  • Critical and creative thinking Critical and creative thinking
ScOT terms

Mathematical expressions

Interactive

Gobbling Goblins

Welcome to 'The Toadstool Bistro', the hottest diner in Goblin Town. Maître d' Grundle is in a panic! The Gobbling Goblins, three fierce food critics, have arrived at The Toadstool Bistro and they're determined to put your kitchen to the test! Your goal is to keep the food coming for these ghastly gourmets. Use your maths ...

Interactive

Goat Crashers (Mental calculations with unconditional probability) - ABC Education

Using your knowledge of different operations, join the Pig Posse to help kick them out before they eat everything. Or join the goats and move on in! Mathematical ideas and strategies this game supports: addition and subtraction with 1–30; multiples of 2, 3, 4, 5, 6, 8 and 10; dividing by 3, 4, 5, 6, 8 and 10.

Interactive

Goat Grommets (Mental computation and dependent probability) - ABC Education

As a team, you'll need to use your understanding of probability to decide which waves your surfer should catch — or when to play it safe and head in. Use mental addition to calculate your score. Enjoy the surf but watch out for the shark pig! Mathematical ideas and strategies this game supports: the probability of an occurrence ...

Interactive

Goat Squad (Partitioning numbers and dependent probability) - ABC Education

The Rocksteady Reds cheer squad is competing against the Blue Boing Boings to be the first to build a triangle and win the cheerleading competition. Will you use your strategies for addition and partitioning numbers to help your team win? Mathematical ideas and strategies this game supports: addition and partitioning numbers; ...

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Make 10 - Calculate

This game challenges students to choose pairs of cards that sum to ten. The game develops students' skills of addition and subtraction, creating simple equations and using mathematical language to describe their thinking processes.

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Duck in a Bucket - Calculate

In this game for pairs or teams, students practise addition and subtraction of small numbers, using multiple strategies.

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Pattern & Algebra Year 2 - Calculate

The focus of this activity is to discover if students can use numbers to describe a pattern that it written as a description. From here we are interested in finding out if students can interpret the pattern, discover the rule and apply this rule to find missing or future terms.

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Addition & Subtraction Year 2 - Calculate

The focus of this activity is to find out what students know about different addition strategies.

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Addition and Subtraction - Calculate

This game focuses on addition, subtraction and estimation. It can be played many times as the totals will often be different and the focus of the mathematics can change. There is a video included to help with how to play the game.

Interactive

Piñata Party Tens (2-digit place value)

As a team, use your knowledge of tens and ones place values to help the goats release the treats from the piñata and have the GOAT party! Mathematical ideas and strategies this game supports: - Increasing and decreasing the value of 2-digit numbers. - Identifying the value of a digit based on its position in a numeral. - ...

Downloadable

Understanding Australian coins

This lesson is about Australian coins, their features, and their value. During the lesson, students explore what Australian coins look like, their value and their purpose. They identify and describe the features and value of Australian coins and make simple calculations using coins.

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Salute - Calculate

This game gives students opportunities to practise addition and subtraction strategies and develop algebraic thinking by finding unknown values in additive equations.

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Odd & Even Year 1 & 2 - Calculate

In this lesson students investigate odd and even numbers.

Video

Numbers Count: Adding two numbers

How many different ways can you think of to add two numbers to reach ten? Watch this video to learn them all!

Video

Numbers Count: Multiply two numbers to get twenty!

Did you know that 5 times 4 equals 20? Did you also know that there are other numbers you can multiply to get to 20? See if you can come up with at least two other numbers.

Video

Nine times table

Learning the times tables can be hard! Watch this neat trick to learn the nine times table using just your fingers. See if you can solve 9 times 6 using this trick.

Downloadable

Algebra: Foundation to Year 9

This comprehensive resource describes the progression of algebra-related ideas and algebraic thinking. The resource demonstrates examples of relevant teaching strategies, investigations, activity plans and connected concepts in algebra including teaching and cultural implications.

Video

Numbers Count: What are factors?

What are factors? Watch as the jelly babies in this clip show you! What are the factors of 12? How many factors does the number 11 have? Try explaining to a friend what a prime number is.

Video

Multiples of five

When is a times table useful? Watch this video to see an example of when knowing a five times table comes in handy. Can you think of another example where knowing the times table could be useful?

Interactive

Wishball challenge: tens

Challenge your understanding of place value in whole numbers up to 99. Receive a starting number, such as 86, and work towards turning it into a target number, such as 18, within 20 turns. Spin a random digit, choose its decimal place value and use the given operation (either addition or subtraction) on your starting number. ...