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Level One > Number and Algebra

# Guess My Number

Purpose:

In this activity students will use their knowledge of numbers between 1 and 100 to try to identify the teacher’s hidden number.

Specific Learning Outcomes:

explore attributes of numbers between 1 and 100

Required Resource Materials:
1-100 flip board.
Activity:
1. Explain to students that you have written down a number between 1 and 100 and that they are going to try to work out what number it is by asking questions about it.
2. Students can ask questions one at a time, with the goal of narrowing down the possibilities left on the flip board.
3. As each student asks a question the teacher answers it and that student can turn over any numbers that they now know are not the correct number.  For example, if a student asks, “Is it a multiple of ten?” and the teacher says it is not, that student can flip over all the multiples of ten.
4. Students should be encouraged to ask questions that reflect a range of understanding of numbers, for example, “Is it in the twenties?”, “Is it an even number?” is it greater than 50?”  Direct questions such as “Is it 24?” should be discouraged, or even disallowed.
5. Once the number is identified, the written down version should be shown, and if they are able enough, the ‘winning’ student could choose the next number and answer the other students’ questions.

## Squeeze - Guess my Number

Order numbers in the range 0–100.

Order the numbers in the range 0–1000.

Order whole numbers in the range 0–1 000 000.

Read decimals with tenths, count forwards and backwards in tenths, order decimals with tenths.

Identify and order decimals to three places.

## Number Line Flips

Say the forwards and backwards number word sequences in the range 0–10.

Say the forwards and backwards number word sequences in the range 0–20.

Order the numbers in the range 0–20.

Order numbers in the range 0–100.

Order the numbers in the range 0–1000.

Order whole numbers in the range 0–1 000 000.

Read decimals with tenths, count forwards and backwards in tenths, order decimals with tenths.

Identify and order decimals to three places.

## Rocket - Where will I fit?

Order numbers in the range 0–100.

Order the numbers in the range 0–1000.

Order whole numbers in the range 0–1 000 000.

Read decimals with tenths, count forwards and backwards in tenths, order decimals with tenths.

Find equivalent fractions and order fractions.

Identify and order decimals to three places.

Order fractions, decimals and percentages.

## Arrow Cards

Order numbers in the range 0–100.

Order the numbers in the range 0–1000.

Identify all of the numbers in the range 0–1 000 000.

Order whole numbers in the range 0–1 000 000.

Read decimals with tenths, count forwards and backwards in tenths, order decimals with tenths.

Find equivalent fractions and order fractions.

Identify and order decimals to three places.

## Card Ordering

Order numbers in the range 0–100.

Order the numbers in the range 0–1000.

Order whole numbers in the range 0–1 000 000.

Read decimals with tenths, count forwards and backwards in tenths, order decimals with tenths.

Order unit fractions.

Find equivalent fractions and order fractions.

Identify and order decimals to three places.