Basic Measurement · 20 lessons

Measurement is where arithmetic meets the world, and it is the branch where a correct calculation most often produces a wrong answer — because the number was right and the unit was not. A length of 350 is nothing until you know whether it is centimeters or meters.

1. 1Longer and Shorter
2. Counting and comparing (14)
3. 2Counting Coins
4. 3Dollars and Cents
5. 4Making Change
6. 5Adding and Subtracting Money
7. Money (10)
8. 6Telling the Time
9. 7Telling Time to the Minute
10. 8Hours and Minutes
11. 9Minutes and Seconds
12. Thousands, angles and time (11)
13. 10Area and Perimeter
14. 11Finding a Missing Side
15. 12am and pm
16. 13The 24-Hour Clock
17. Time (11)
18. 14Volume of a Cuboid
19. 15Reading a Ruler
20. 16Drawing a Line Segment
21. Averages and charts (12)
22. Volume and water tanks (10)
23. 17Reading Scales
24. 18Time Durations
25. 19Money as Decimals
26. 20Estimating with Units
27. Measurement (15)