Principal Sponsors
Makes grants to address the most serious social and environmental problems facing society, where risk capital, responsibly invested, may make a difference over time.
National Science Foundation
An independent federal agency created by Congress in 1950 to promote the progress of science.
King Saud University seeks to become a leader in educational and technological innovation, scientific discovery and creativity through fostering an atmosphere of intellectual inspiration and partnership for the prosperity of society.
The O'Donnell Foundation is devoted to building model programs to enhance the quality of education.
Arithmetic
Remember your multiplication tables? ... me neither. Brush up on your multiplication, division, and factoring skills with this exciting game. No calculators allowed!
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Teaching Resources
Main Topics
- Multiplication
Sample Learning Goals
- Explain how the multiplication tables help understand multiply, factor and divide.
- Increase accuracy in multiplying, factoring and dividing.
Tips for Teachers
The teacher's guide (pdf) contains tips created by the PhET team.
Teaching Ideas
| Title | Authors | Level | Type | Updated |
|---|---|---|---|---|
Arithmetic Games (Inquiry Based)
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Trish Loeblein | HS | Lab | 7/7/13 |
| Arithmetic Practice Game | Chris Bires | K-5 HS MS |
Lab | 8/4/10 |
| Discovering divisibility rules | Stacy Larson | MS HS |
Lab | 11/22/08 |
| 校舍補強 | 凃淑麗 | Grad MS |
CQs | 8/17/12 |
| 곱셈 나눗셈 연습 SIM 사용설명서 | 이화국(Wha Kuk Lee) | K-5 MS |
Demo HW CQs |
5/21/13 |
You can submit your own ideas and activities.
Translated Versions:
Software Requirements
| Windows | Macintosh | Linux |
|---|---|---|
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Microsoft Windows
XP/Vista/7 Macromedia Flash 9 or later |
OS 10.5 or later
Macromedia Flash 9 or later |
Macromedia Flash 9 or later |
Credits
| Design Team | Third-party Libraries | Thanks To |
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