Room 28
Learning Objective
Grade B
To be able to calculate the limits of
accuracy for numbers given to the nearest whole number.
If a piece of wood has been cut to 10cm to
the nearest cm what is the largest and smallest possible length?
Grade A
To be able to calculate the limits of
accuracy for numbers given to a set number of decimal places or significant
figures.
If a piece of wood has been cut to 10cm to
the nearest cm what is the largest and smallest possible length?
Grade F
Revision on Rounding to a set number of Decimal Places:
Ten Ticks 6, 3, page 19 (top half)
Grade E
Revision on Rounding to a et number of Significant Figures:
Ten Ticks 6, 3, page 19 (bottom half)
Sorting exercise - "Tarsia - Rounding" (print)
Grade B
Revision of limits using MyMaths
Grade A
Introduce student to the idea of finding
limits of number (including decimals)
Watch the video below before next lesson noting that the number are all rounded to 1SF:
Learning Objectives for next lesson:
Grade C
To be able to demonstrate estimating the values of calculations involving any positive numbers (including numbers less than one).
What is your estimate of (17.543 x 3.23)/0.37 and how did you work this out?
Grade A*
To be able to calculate the limits of compound measures.
London is 300 miles from Penzance to the nearest 100 miles, this distance takes up 6 hours to the nearest hour, what is the highest and lowest possible speed?
