Step up or step down to rounding. Using a vertical number line, the lesson shows pupils the significance of rounding up or rounding down. Teachers encourage scholars to write the number in unit form and decide which form helped the most...

Young mathematicians dive into the number line to discover decimals and how the numbers infinitely get smaller in between. They click the zoom button a few times and learn that the number line doesn't just stop at integers. Includes...

Class members come up with a hypothesis on the number of decimal digits in the product of two decimals. Learners work in groups to complete several decimal multiplication problems. The results help groups develop a conjecture on the...