Bridging Through 10

Objective:
Y2:Add or subtract mentally a one-digit number or a multiple of 10 to or from any two-digit number; use practical and informal written methods to add and subtract two-digit numbers

Catapult Count On

Use your knowledge of number bonds to 10 to help you to destroy the castle, by jumping to the next multiple of 10.

If it is too easy, tick the 'hide jumps' box.

Objective:
Y1: Use infomal methods for addition of a one digit number, or 10 to a one or two digit number.

Y2: Represent repeated addition and arrays as multiplication and... repeated subtraction as division.
Use practical and informal methods to add and subtract two-digit numbers.

Numberline Jump Maker
A numberline demonstrator. You can take away, calculate subtraction as the difference or complete division calculations via repeated subtraction.

Objective:
Y1/2: Adding by bridging through 10.

Special Space Jumps
An activity for Year 1 and 2 children, adding single digit numbers by bridging through 10.
With many thanks to Karen Gray, who suggested this activity.
Will only bridge through 10 and no other multiples of 10. Intended as a starting point for teachers. First keypad will not allow the players to jump straight to the answer.

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Objective: Y2: bridge through 10 or 20. Y3: bridge through a multiple of 10 and then adjust, Y5 & Y6: no objective, but the children are expected to bridge through decimal values.

Bridging Shuttle
An activity for demonstrating the technique of 'bridging'. This activity will be included with the 'Norfolk Number Line Working Party' document and CD ROM due for release in 2003.
Objective:

Add Subtract Number Lines
Use the number line to demonstrate your choice of addtion or subtraction problem.
Objective:
Y2: To measure using standard units.
To know that 1 kilogram = 1000 grams.
To count in steps of 10 or 50.

Mostly Postie
Year 2, (Summer):
Drag the parcel onto the scales, then enter the value shown to deliver your letter or parcel. Counting in 10s and 100s. Reading scales, familiarisation with number lines.

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Objective:
To develop pencil and paper methods to complete additions.
To add two 2-digit numbers together by adding the tens digit first.

Techno Tortoise
A demonstrator for the use of number lines.
Includes a game for adding two 2-digit numbers together by adding the tens first. Answer 5 questions correctly and you can play the flying game.

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