Mon Prof Augmenté
Maths: Age 9
17 illustrated Maths lessons for Age 9.
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Narrow, square or wide angles A set square has a perfect square corner called a right angle. Put it in the corner of any angle to see if tha… -
Five Quarters of Tart When a tart is cut into four equal slices, each slice is one quarter. Four quarters make one whole tart, so fi… -
Seven Quarters of Tart When you cut tarts into four equal slices, four slices make one whole tart. Seven slices make one whole tart a… -
Five quarters of a pie Four quarters fit together to make one whole pie. Add one more quarter and you have five quarters, which is on… -
Eleven Quarter Slices Eleven quarter slices can be grouped into two whole pies and three extra slices. So eleven quarters is the sam… -
Tiles on a Rectangle Square tiles cover a rectangle in equal rows and columns. Count all the equal square tiles to get the area, an… -
Halve 86 Split 86 into 80 and 6. Half of 80 is 40, half of 6 is 3, so half of 86 is 43.… -
Rounding to the Nearest Ten Round each number to the nearest ten. Then add the rounded numbers to estimate the sum.… -
Multiplying by 10 When you multiply a whole number by 10, each digit moves one place to the left. A zero fills the empty ones pl… -
Complements to 100 Two amounts are complements to 100 when they fit together to fill a hundred-square exactly. If one amount is 6… -
One Tenth A whole bar is split into ten equal strips. One strip is shaded, and the number 1/10 is written beside it.… -
The little square mark When two straight lines meet at a perfect corner, a small square can fit inside. The square touches both lines… -
Tenths and Hundredths A whole square can be split into ten equal strips or into one hundred equal tiny squares. On a graduated line,… -
Three Quarters of a Tart A round tart is cut into four equal slices. Three slices are still on the plate, and one slice is missing.… -
Acute Right and Obtuse Angles Three pipe cleaners are bent and placed side by side. The narrow bend is an acute angle, the L-shaped bend is … -
Around the Garden Bed The white rope runs all the way around the rectangular soil bed. The total distance along that rope is the per… -
One Bar Split Into Tenths The bar is cut into ten equal pieces, and three of them are painted orange. Each piece is one tenth, so the or…