Maths2

Maths term two 

This term I am in the purple group again.

So far we have are learning to add decimals on a number line. I'm learning about square roots and the powers of numbers. For example: the square root of 81 is 9 because 9 times 9=81. An example for the power of is: the power of 9\2 is 81. There like the oposite of each other.

Measurement Magic,

Autumn Leaves. Pick a tree somewhere around your classroom and estimate the weight of leaves on it. How many leaves on the tree? Person 1)300. Person 2)350. Person 3)450.

How much do you think they might weigh? Person 1) One leave:1/2 a gram All the leaves: 90 grams..

Person 2) One leave:3/4 of a gram. All the leaves: 20 grams.

Person 3) One leave:1/4 of a gram All the leaves:100 grams.

How might you weigh all the leaves on a tree? Get one leave and weigh it then times it by the number of the leaves on the tree.

How much does one blade of grass weigh? Person 1)1/3 of a gram Person 2)1/5 of a gram Person 3)1/8 of a gram.