Math

Measuring Angles

This week we will be looking at how to accurately measure angles with a protractor, and become familiar with various common angles.

Line Graphs

We looked at the difference between discrete and continuous data and made line graphs with various data. Interpreting line graphs went quite well. Creating them is a challenge we will look at again in the future.

Fractions

This week we will be taking a (re-)introductory look at fractions. The big ideas for this week is that fractions can be one of two main things: parts of a whole or parts of a set. Parts of a whole is when we think of dividing a whole into equal parts, the denominator, then determining how many of those parts are being counted, the numerator.

Parts of a set is when there is a group of things and the total number of objects is the denominator and the number of them that have shared characteristics is the numerator.

Today, we compared fractions and I taught them a hack for determining which is greater. It involves cross-multiplication and while I could explain how it works, I will save that for later.






 Patterning

This week, we are expanding on our study of multiples and factors last week by looking at sequences of numbers. For now, we will only be looking at linear sequences. These are sequences that only go up or down by the same amount every term. For instance, 3, 6, 9, 12 increases by 3 each times. 

We discussed pattern rules like, "starts at 3 and increase by 3" for the above example, and continued sequences for a few terms like, 15, 18, 21 for the above example.

We thought about the difference between term and term number where the term is the actual number in the sequence and term number is where the number falls in the sequence. The way this is most frequently used is by saying that "9 is the third term" in the sequence above, or "what term number is 9 in the sequence? The third."

We also use table of values to help visualize the sequence. The aforementioned sequence would be represented like this:

Term NumberTerm
13
26
39
412
515

I quickly showed how these terms are linear by using the data in a Google Sheet and Inserting a Chart:


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