The Earth is spinning around its axis. At the equator, the Earth’s surface moves 40,000 kilometers in 24 hours. That is a speed of about 1040 miles/hr (1670 km/hr or 0.5 km/sec). This is calculated by dividing the circumference of the Earth at the equator (about 24,900 miles or 40,070 km) by the number of hours in a day (24). As you move toward either pole, this speed decreases to almost zero (since the circumference of the spinning circle at the extreme latitudes approaches zero).

Help a frog to jump along a number line. Add multiples of hundredths to a starting number (or subtract them from it). Then estimate where the frog will finish on the line. For example, 1.72 + (11 x 0.07) = 2.49.

Reflections on Learning

Which game did you like the most and why?

Which game didn’t help develop your understanding of the concept?

Which task did you find you gained the most knowledge from? Why?

Blog Games/Grid/Ms Johnson, Video & Discussion/TM5 Fractions & Decimals

Could you imagine a decimal such as 0.6 represented in other ways? Try it and see.

We’ll give you a decimal. You then adjust two other things – either of which could be a dial, pie chart, number line, fraction, grid (array) or counting frame – to match it.