WAL how to find the perimeter and area of some classroom objects.

Term 4

OBJECT | PERIMETER | AREA |

Formula | P= 2 (L + B) mm,cm,m | A = L x B/W (sq mm,sq cm,sq m) |

Modelling book | L=40cm B=30cm P=40+30=70cm | L=40cm B=30cm A=40x30=1200cm A=1200sq cm |

Large Rectangular Table | L=121cm B=81cm P=121+81=202cm | L=121cm B=81cm A=120x80=9600cm 1x1=1cm 9600+1=9601sq cm |

Tote tray | L=39cm B=27cm P=39+27=66cm | L=39cm B=27cm A=30x20=600cm 9x7=63cm 600=63=663sq cm |

My reflection

I found this a bit tricky because I was unsure about how it works but now I know how it works.

My next step is to do some harder ones and do it in a quicker time.