Problem solving

Problem-solving Investigations - Year 3/4

Hamilton provide weekly Mixed Year 3/4 maths problem-solving investigations. The mixed-age investigations below will be phased out when we phase out our mixed age weekly maths plans.

Mixed-age maths blocks will be coming during Summer Term for September 2019 and will include investigations for every unit. Find out more about the timetable for Hamilton's Y3/4 maths blocks, including investigations.

Supporting documents for set
  • Week
  • Title
  • Download
+ Details
Guess my number

Children use their knowledge of three-digit numbers, four-digit numbers or Roman numerals, rounding, and properties of numbers to work out mystery numbers.

+ Details
Age guessing trick

Children subtract numbers and use this calculation to guess a friend's age.

+ Details
Prime addition squares

Children add sets of three-digit numbers to find patterns in a magic square based on prime numbers.

+ Details
Perimeter patterns

Children find how many rectangles it is possible to draw with perimeters 2cm, 4cm, 6cm....30cm and look for patterns in the results.

+ Details
18 times table - wow! (Y3), Target timings (Y4)

18 times table - wow! (Y3): Children use the grid method to work out the 18 times table and look for patterns in the answers. Target timings (Y4): Children add or subtract ones, tenths or hundreths to reach a target number. The use mathematical resoning to choose the best strategies.

+ Details
Maths detectives

Children use clues to find an amount of money/number with two decimal places.

+ Details
Reversed tables

Children explore multiples of 3 and 4 to find divisibility patterns.

+ Details
Tremendous tiles

Children explore creating patterns of tiles with three asymmetrical blocks.  They look for and identify lines of symmetry, creating patterns with at least two lines of reflective symmetry.

+ Details
Fancy fraction answers

Children find non-unit fractions of multiples and look for patterns.

+ Details
Day I was born

Children calculate the day they were born on, and other birthdays of friends and family. They then investigate corresponding months.

+ Details
Set square

Use digits 1-9 once only to complete a calculation grid with given answers for each row and column.