Part-part-whole/ Place Value PartioningWHOLE NUMBERS

Now and Next

Where are they now?

Recognises numbers to 10 in terms of their parts eg 8 is 6 and 2, 1 more than 7, 2 less than 10 ..)

Where to next?

Recognises teen numbers in terms of their 'ten' structure (eg 10 and 3 is 13)

Purpose

When students become familiar with ways in which different numbers add together, particularly if this knowledge is associated with mental images of objects, they are more able to perform rapid mental calculations.

Resources

Activities where students are encouraged to use physical models to make a total, help students to develop skills around this idea.

 

Linked activitiesLinked Activities

  • download Win Two Ten-Sticks
  • download Double Ten Frames Addition
  • download Teens and Ten strips

AssessmentAssessment

  • download What does my number look like?

other resources References to Other Resources

 

 

Activities and Assessments

 

download Win Two Ten-sticks

Win Two Ten-sticks

Focus: Building an understanding of the construction of teen numbers, with particular reference to the ten and ones structure.

How: Students take turns throwing a die, collecting the corresponding number of unifix or multilink cubes, and placing them along one of the ten-strips located in the ones column of the provided Tens and Ones table. If a strip is filled on a given throw, remaining cubes are used to start filling the second ten-strip. The cubes on the filled ten-strip are then immediately snapped together to make one 'ten stick' which is placed in into the tens column. The first student to make 20 or over is the winner. It helps if students keep a running total on a calculator, and continually check to make sure the digits on their calculators match the number of objects in the tens and ones columns of their table.

Download Win Some Ten-sticks board


download Double Ten frames Addition

Double Ten frames Addition 

Focus: Building an understanding of the construction of teen numbers, with particular reference to the ten and ones structure.

How: See Double Ten Frames Addition Notes

Download DoubleTen Frames Addition Boards

Download Double Ten Frames Spinners

Download Ten Frames


download Teens and Ten strips

Teens and Ten strips

Focus: Building an understanding of the construction of teen numbers, with particular reference to the ten and ones structure.

How: Before the game begins, the teacher places a paper clip on a number, somewhere along the 10 to 20 number line. Players then take turns to create numbers between 10 and 20. A turn consists of a player spinning the top spinner, then placing the indicated number of unifix or multilink cubes on the ten-strip. The player then spins the lower spinner and takes the indicated number of cubes, using some of these to fill the remaining squares in the ten-strip and placing the remainder into the circle next to the ten-strip. Students have to quickly deterimine the total number of cubes (the ten in the ten-strip plus the remaining ones). They then place one of their spare cubes (of an agreed colour) below the corresponding number on the number line. The first student to get one number higher than, and one number lower than the number indicated by the paperclip is the winner.

Download Teens and Ten Strips board

Download Double Ten Frames Spinners

Download Teens and Ten Strips number line

 

download Assessment - What my number looks like

Assessment - What my number looks like

An appropriate number (for the stage of the student) is written in the centre of the sheet – the student then must try to make the number in a number of different ways (as indicated on the sheet.)

Download ‘What my number looks like’ sheet

Download ‘What my number looks like’ Assessment Rubric

 

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