top of page
hipp_edited_edited_edited.jpg

The concept of rounding is very old, perhaps older than the concept of division itself. Some ancient clay tablets found in Mesopotamia contain tables with rounded values of reciprocals and square roots in base 60.

ROUNDING

What are the floor and ceiling functions?

Key questions

  1. Can we round to a given power of 10?

  2. What is an appropriate degree of acuuracy?

  3. How do we round to a decimal place?

  4. How do we round to a significant figure?

~2 lessons

Specification detail

binomial expansion.png

Literacy

  • stories that set a frame or background

  • stories that accompany or intertwine

  • stories that introduce

  • stories that explain

  • stories that ask a question

  • stories that entertain

Zero the Hero by Joan Holub

Introducing...

Title - Key questions

rounding to 10 - 1

rounding numbers - 1

scales - 3

significant figure identity - 4

more significant smile - 4

rounding decimals fluency - 3

halving - 3

decimal place match - 3

less than more than - 2

zero the hero - narrative

the history of zero - narrative

Developing...

Title - Key questions

rounding - 1,2

rounding powers of 10 tarisa - 1

significant figures - 4

two significant figures intervals - 4

rounding tarsia  - 3,4

progressive overload rounding - 1,3,4

midpoints and rounding - 2

more accurate - 1,2,3

decimal places tarsia - 3

another rounding tarsia - 3,4

another rounding powers of 10 tarsia - 1

bottom of page