Today’s homework. A bigger story.
Pick a topic, meet the people behind the ideas, and try something together.
20 pioneers with prepared, book-cited stories. Explore all 315 profiles
When would a more precise measurement be useful?
Explore decimals & calculation with Jamshid al-Kashi, then try the activity below.
The legacy behind the lesson
Al-Kashi worked on numerical calculation, including methods for finding roots.
He helped develop the use of decimal fractions.
His work used decimal fractions to approximate numbers, including pi.
“When would a more precise measurement be useful?”
Build a pattern and explain it
Gather: Paper and large paper squares.
- 1
Make a row with one square, then another with two, then another with three.
- 2
Draw the next two rows before adding the squares.
- 3
Count the total after each row and write the numbers in a table.
- 4
Describe the rule in your own words. Ask someone to predict the next total.