Skills:
-Practice adding 2 and 3 digit numbers (with carrying)
-Practice multiplying 2 and 3 digit numbers
Curriculum (Alberta Education):
Math 3
SLO 6: Describe and apply mental mathematics strategies for adding two 2-digit numerals, such as:
• adding from left to right
• taking one addend to the nearest multiple of ten and then compensating
• using doubles.
SLO 9: Demonstrate an understanding of addition and subtraction of numbers with answers to 1000 (limited to 1-, 2-and 3-digit numerals), concretely, pictorially and symbolically, by:
• using personal strategies for adding and subtracting with and without the support of manipulatives
• creating and solving problems in context that involve addition and subtraction of numbers.
Math 4
SLO 3: Demonstrate an understanding of addition of numbers with answers to 10 000 and their corresponding
subtractions (limited to 3- and 4-digit numerals) by:
• using personal strategies for adding and subtracting
• estimating sums and differences
• solving problems involving addition and subtraction.
Math 5
SLO 6: Demonstrate, with and without concrete materials, an understanding of multiplication (2-digit by 2-digit) to solve problems.
Prep
1. Print off which sheets you need (at the bottom of this post), whether it's 2 or 3 digit addition/multiplication. Everyone gets a sheet, even the teacher.
2. Go this website for your dice. You will need to display this on the SmartBoard later. Click on "Customize Dice". Click on "10 Faces". Put in the numbers 0-9 and press "Create". Alternatively, it you have a dice with 10 sides, that works too.
Here's How to Play:
1. When you click on the dice, a random number comes up. The teacher and the students choose which box they wish to put that number in; everyone does it individually without telling each other. Once you have put that number down, you cannot change its spot.
2. When everyone is ready, click the dice again. It will give you another number. Put that number down into another box. Keep going until you have filled up the boxes.
3. Once all the numbers have been filled, add it all up! There may be some carrying required so make sure that they students remember to do that.
4. The teacher adds up his/her own equation and puts the sum on the board.
5. If a student has:
- a sum that is greater than the teacher's number, the student gets 2 points.
- a sum that is equal to the teacher's number, the student gets 1 point.
- a sum that is less than the teacher's number, the student gets 0 points.
The points can be recorded at the bottom of the sheet.
By this point, the students should catch on that they're trying to make the biggest number possible. They need to weigh the pros and cons of which spot they put their number in because once it goes in, it can't be changed. If they're hoping for a big number to put in their hundreds place value, they may end up with a low number.
6. Move on to the next blank equation to start a new round. At the end of the game, see who has the most points!
Addition
| Multiplication
|
-Tina