baizea

Hi Everybody!!!!!!!!! These blogs bring up memories

So Mr.Tubbs was a good math teacher(not my favorite ever‹3)

Anyway I really like Hippos, Giraffes, and most of all COWS

Learning Target: create  tessellations.

Example: This is a regular tessellation using squares. This is regular

because it only uses one type of polygon, a square.

A vertex is a point in a tessellation that the shapes fit nicely arround.

To tessellate the sum of the interior angles surrounding a vertex must be 360°.

Equalateral triangles, squares, and hexagons are the only

regular shapes that make regular tessellations.

In many tessellations shapes are rotated, translated, or reflected.

For more great information about tessellations see bergerl's blog. 

Learning target:

Use the prime factorization of composit numbers to recognize the least common multiple.(LCM)

Examples:

       1.  25=5•5     12=2•2•3    Because there are no common factors,

         /\            /\             you multiply all the factors to get the

        5•5          6•2             LCM.

                      /\               2•2•3•5•5=300

                     3•2               LCM=300

       2.  18=3•3•2     20=5•2•2      Because there are common factors,

            /\              /\                for each of the common factors (2, 5, and 3)

           9•2            5•4                count the amount there are for each  

          /\                 /\                number, and take the ones with the most for each factor

         3•3               2•2                and only multiply those.

                                                  Take,2,2,3,3, and 5.  2•2•3•3•5=180   LCM=180

Lesson:

If the numbers have no common factors, multiply all the prime factors.  If the numbers do have common factors, for each of the common factors count the amount of the common prime factors from each number, then take the ones with the most for each factor, and only multiply those.

Take a self check quiz on using prime factorization to find the LCM. 

Use stragites to develop a formula to find the circumference of a circle.

Examples:

1*3.14=3.14 3*3.14=9.4

Lesson:

To find the circumference of a circle do the dimater multiplied by π. The solution is the circumference of the circle.

Links:

Heres a website to learn more about this great topic.

If you would like to learn some more about this really fun topic, go to this great site.

Learning Target

Estimate sums and differences using decimals.

Example:59.44+63.26 34.76-23.87

59.00+63.00=120.00 35.00-24.00=11.00

Lesson

To estamate a sum round the decimals to whole numbers then add the whole numbers. To estamate a difference round the decimals to whole numbers then subtract.

take a quiz