GRADE 8 GEOMETRY OF STRAIGHT LINES

GRADE 9 GEOMETRY OF STRAIGHT LINES

Click on the above for some activities on these topics.

Or, [...]

The post April 19 Lesson Activities to Develop Understanding and Skills first appeared on Aiming High Teacher Network.]]>Can you find a way to fold a sheet of paper so that you can cut out the tangram pieces accurately [...]

The post Tangram Fractions first appeared on Aiming High Teacher Network.]]>Investigate what happens if you reflect the blue flag in Mirror 1, then reflect that reflection in Mirror 2.

Do you get the same results for the red flag if you reflect it first in Mirror 2 then reflect that reflection in Mirror 1?

You might like to copy the [...]

The post Mirror Mirror first appeared on Aiming High Teacher Network.]]>Look carefully at the numbers in the 4 by 4 square.

What do you notice?

Add up the rows. Add up the columns. Add up the diagonals.

The square is magic.

Look carefully at the patterns when you find numbers adding up to 17.

[...]

The post Picture Puzzler first appeared on Aiming High Teacher Network.]]>The picture shows a 5 hour journey into the mountains on a narrow path to probably the most remote school in the world in Gulu, China.

The [...]

The post Travel to School first appeared on Aiming High Teacher Network.]]>Which rectangles are exactly the same (congruent)?

Which rectangles are similar?

Is a Square a Rectangle – Template

Click here to download the IS A SQUARE A RECTANGLE? worksheet.

Click here to download the NOTES FOR TEACHERS.

[...]

The post Is a Square a Rectangle? first appeared on Aiming High Teacher Network.]]>and y = 0.9x – 0.1

What do the graphs tell you about the solutions to the two pairs of simultaneous equations y = x y = 1.1x – 0.2 and y = x y = 0.9x – 0.1 [...]

The post Intersections first appeared on Aiming High Teacher Network.]]>1. What type of an equation is this?

2. Remember the general form of an equation of this nature: $y={a x }^{ 2 }-bx-c$

When $a > 0$ the graph is $\cup$ shaped and when $a < 0$ it is $\cap$ shaped. What is the situation in our problem?

[...]

The post Graphing Quadratic Equations first appeared on Aiming High Teacher Network.]]>The Function Game is played in silence. Learners have to guess the function in the teacher’s mind. The teacher tells the learners that she wants [...]

The post Function Game first appeared on Aiming High Teacher Network.]]>Arrange the 16 pieces into a larger triangle so that the numbers on matching edges are the same, for example .

Click here to download the POWER MATCHING worksheet.

Click here for Notes for [...]

The post Power Matching first appeared on Aiming High Teacher Network.]]>Do you have exactly the right amount of information or more information than you need?

Click here to download the MATCHLESS worksheet.

Click here to download the AIMSSEC Teacher Notes for MATCHLESS

This problem is adapted [...]

The post Matchless first appeared on Aiming High Teacher Network.]]>What is the area of the bigger square edged by dotted line segments of length a?

What is left of that area if you take away a square with edges of length b?

What is the area of the rectangle formed by the yellow [...]

The post Difference of Squares and Area first appeared on Aiming High Teacher Network.]]>Give a proof linked to this picture of the formula $a^2 – b^2 = (a + b)(a – b)$ .

2. What do you notice about the difference between squares of consecutive numbers?

Compare the differences between squares of numbers that differ by 1 [...]

The post Differences of Squares Investigation first appeared on Aiming High Teacher Network.]]>This picture shows how you can fit 2 identical copies of a triangle together to form a rectangle.

Can you use it to find the number of dots in the fifth triangle number without counting the dots?

Can you find any [...]

The post Triangle Number Picture first appeared on Aiming High Teacher Network.]]>DIFFERENCES OF SQUARES AND AREA

DIFFERENCES OF SQUARES INVESTIGATION

INTERSECTIONS Simultaneous Linear Equations

GP ALGEBRAICALLY Geometric series

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(1) [...]

The post February 8 More Lesson Activities to Develop Understanding and Skills first appeared on Aiming High Teacher Network.]]>Is there more than one?

It is quite easy to find a few solutions. The big challenge is to find all possible solutions.

Can you provide a convincing argument that you have found [...]

The post Blocks, Bricks and Boxes first appeared on Aiming High Teacher Network.]]>0.12121212…

12.12121212…

Multiply the first number by 100. What do you get?

Subtract the smaller number from the bigger one. What do you get?

What does this tell you about the [...]

The post REPETITION first appeared on Aiming High Teacher Network.]]>For example, the [3/10 and 10%] domino matches with 30% at [...]

The post FDP Loops first appeared on Aiming High Teacher Network.]]>Graphs and equations of 7 quadratic functions are given here.

Match them and put them into 7 sets. Write down the coordinates of the intercepts with the axes.

Make a poster showing the graph of each function with the matching equations.

In all these examples the coefficient of [...]

The post Quadratic Matching 1 first appeared on Aiming High Teacher Network.]]>For what other values of x is A the greatest?

For what values of x is B the greatest ?

For what values of x is C the greatest?

Is there a value of x when neither A nor B [...]

The post Almost Total Inequality? first appeared on Aiming High Teacher Network.]]>