This week we have looked at multiplication using statistics, measurement and money. We have looked at missing number problems involving multiplication, for example:
We used our knowledge of the grid method to help us find the missing numbers. This week we have looked at a range of pictograms. We know these are a visual representation of repeated addition. We created our own class pictogram to show pets. We thought of our own key to show what one picture was worth on the pictogram. We then discussed our pictogram asking questions like, how many more dogs than fish are there? We have also explored money. We have looked at the value of a variety of notes and coins. We have found total amounts and calculated change. We have also explored making amounts using for example the least number of coins etc.
This week we have looked at the 4 and 8 x tables during Maths aerobics and in class too! We were involved in a fun 4 x table treasure hunt with our Talking Partners on Monday! We have also been looking at the Grid Method as a written method of answering multiplication calculations.
We have also used sorting diagrams to compare and sort numbers. We looked at Venn diagrams and Carroll diagrams. We decided a rule for each set in the sorting diagram. We then put the numbers 1 – 30 in the correct place on the Venn sorting diagram. We know Carroll diagrams sort whether items satisfy a criterion or not e.g. even or not even.
This week we are looking at Measurement focusing on Volume, Capacity and Mass.
On Monday we looked at Kilograms (Kg) and Grams (g). We estimated the weight of items, calculated weights in grams and kilograms and converted between the two. We also practiced reading scales and deciding how many grams or kilograms each increment on the scale represented. Some of us started to solve mass word problems too.
On Wednesday in groups we measured out bags of rice. We filled bags containing a range of amounts 100g, 200g, 300g, 400g and 500g. We then used a sealed bag of 1kg of rice and found the many different ways of making 1kg using our bags.
We developed our ability to measure the rice accurately and we are really improving in our ability to read and understand increments when reading scales.
This week we are going to be exploring fractions and written and mental division.
On Tuesday we found out how partitioning numbers is an important skill for mental division.
48 ÷ 4 = 12
Partition 48 into 40 and 8 (both are multiples of the divisor 4)
40 ÷ 4 + 8 ÷ 4
10 + 2 = 12
On Monday we looked at how division statements can be represented using arrays, we also examined how many objects were in the array using multiplication. We then identified the multiplication and division calculations for each array.
3 x 6 = 18
6 x 3 = 18
18 ÷ 6 = 3
18 ÷ 3 = 6
This week we are looking at fractions. We understand that fractions are equal parts of a whole. We know that when writing a fraction the numerator is the part and the denominator is the whole.
We have explored sets of objects such as counters. We know that the total number is the denominator and the objects/counters which meet a certain criteria such as red in colour is the numerator.
We have also found fractions of shapes and explored finding unit and non unit fractions of amounts.
This week we are looking at Place Value, Counting and Mental Addition and Subtraction. Today we looked at lots of reasoning and problem solving questions. For example 'My number has eight ones, five tens and three hundreds.' What is my number? and find all the 3-digit numbers you can using the digit cards 8, 1 and 4. We enjoyed using the Base 10 equipment to make a variety of 3-digit numbers.