Modelling ideas

Ideas that focus on using technology to support looking at different mathematical structures, to support or reveal a deeper understanding..

 

Spreadsheets

 

10 Bar random sums <10 illustrated on a bar model (any part of the number sentence can be hidden)

10Bar1

NB comparative bars & subtraction are also available on the same file

Fraction as a number a mixture of random and self-input fractions showing equivalence in different denominations and mixed number & vulgar fractions  

frac1frac2

Fractions "of" & ratio 

frac3frac4

frac5

NB- Values of parts or ratios can be selected to be shown or not

Geogebra

10 Bar interactive model of x+y=10 as a bar and as a line graph

geo1

x-squared interactive model of y=xshown as bars and as a point on graph

Geo2

Circle thoerems: a series of simple geogebra files to allow interactive investigation of theorems

cyclic quadrilaterals

same chord

angle at centre double

geo3geo4geo6

Last modified onThursday, 16 May 2019 07:57
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