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# place value

• Problem Solving Activities
• Number and Algebra
• Level Five

Use the numbers facts with digits to solve a problem;

Use a systematic approach to get the number of ways that four numbers can add to 9.

## How High?

• Problem Solving Activities
• Number and Algebra
• Level Four

Explain a meaning of a million

Make sensible estimates of numbers using powers of 10 up to a million.

Multiply and divide with numbers up to a million (using a calculator)

## The 500 Problem

• Problem Solving Activities
• Number and Algebra
• Level Three

Explain face, place and total value of numbers

Solve 3-digit subtraction problems

Devise and use problem solving strategies (guess and check, think logically)

## Money Matters

• Units of Work
• Number and Algebra
• Level Three

In this unit, students will explore Number concepts through the real world Measurement context of Money.  A variety of money contexts will be explored using paper play money, at first trading only \$1, \$10, and \$100 notes, and eventually extending the trades and operations into using thousands, millions and billions of dollars.

Students will be involved in making fair trades and exchanges of their money in order to have practical experiences with the essential "rules" of our place value system. Namely, that any ten of one denomination is equal to one of the next higher order (ie. 10 ones = 1 ten, 10 tens = 1 hundred, 10 hundreds = 1 thousand and so on).  The money context, with real world problems, will be used to enable students to make sense of, and to "unlock", the keys to the language, patterns and rules of our place value system.  By exploring large numbers through the concrete material of play money, students will gain confidence decoding and reading multi-digit numbers involving, ones, tens, hundreds and eventually, thousands, millions, billions, trillions etc.

Visit ESOL Online for a version of this unit designed to support students for whom English is an additional language.

## Make 1000

• Units of Work
• Number and Algebra
• Level Two

In this unit the students form collections of 1000 objects.  In doing this they examine the relationship between 1000 and smaller numbers, specifically 100 and 10.

 Visit ESOL Online for a version of this unit designed to support students for whom English is an additional language.

## Target 15 287

• Numeracy Activities
• Number and Algebra
• Level Three

This is a whole class game but can be played in small group situations where they can take turns to roll the die. To give students practice in adding numbers from one up to ones of thousands or decimal numbers from thousandths to ones. Both cards can be played at the same time which caters for differing students’ needs.

## Rolling Problems

• Numeracy Activities
• Number and Algebra
• Level Three

In this activity we work with four digit numbers, adding and subtracting 1, 10, 100 and 1000 to these.

## My Decimal Number

• Numeracy Activities
• Number and Algebra
• Level Three

In this activity students brainstorm different ways to represent decimal fractions.  They will draw on their knowledge of decimal place value, addition and subtraction of decimals, and writing decimals in words and symbols.

## Show Me the Number

• Numeracy Activities
• Number and Algebra
• Level Two

The purpose of this activity is to develop students’ ability to show two-digit numbers using place value material.

## Th numbers

• Numeracy Activities
• Number and Algebra
• Level Two

In this activity students learn that the code in English for fraction is that the words end in -“th”