## No Frills MATHs Skills for Parents 4: FRACTIONS for Beginners

June 6, 2022

Here is a post on Lego Fractions by New York Grade 3 teacher Alycia Zimmerman. Surprisingly I found this on an art website.

Just play with the Lego blocks. Add and subtract … you can even multiply and divide.

Next time.

May 23, 2022

May 4, 2022

## No Frills MATHs SKILLS for Parents 1: Super Easy Long Mult and Division

April 27, 2022

Go to It will take you through basic maths by your Grade level.

NB. If you can’t remember how to ‘borrow the 1’ for division or ‘carry the 2’ for multiplication here go back to the link above.

March 18, 2022

## A COOL MIDDLE SCHOOL MATH EXERCISE

This idea comes from Burkard and Giuseppe @ the fabulous MATHOLOGER channel. Students can make a pattern called a cardioid that pops up all over math according to Burkard.

Follow these steps. There is a pdf file below the first diagram for printing exercise sheets.

And then watch the MATHOLOGER video for a really interesting explanation.

x2 Tables on a Circle pdf file for printing

This circle graph blank could also be used for x3 and x4 tables, which produce totally different yet equally amazing patterns.

Halfway there, now it gets tricky. +52 to each point on the circle and keep multiplying by 2.

ie. 27 x 2 = 54, 28 x 2 = 56 and so on.

so 0 = 52, 1 = 53, 2 = 54, 3 = 55, 4 = 56 etc

This shape is called a CARTIOID.

January 28, 2022

## Sound Math 1: Good Vibrations!

October 4, 2021

There is so much maths around sound, but sound is simple.

Sound is made by something vibrating in air. The vibrations create waves and these pressure waves hit your ear.

# The Frequency of Sound

The frequency, measured in Hertz Hz, is the no. of pressure waves per second hitting your ear.

## Patterns  Created by Sound Waves that add to or cancel one another

Projects Studio Handbook HARMONICS

This is a vibration plate. Sand collects in the areas which do not vibrate and create patterns. The patterns are called CHLADNI figures.

In fact, the sand collects in places where standing waves – waves that cancel each other out – form. The rest of the plate is vibrating and making the sound.

The frequency of the sound creating this Chladni pattern is shown in Hertz Hz

Other Sound Math:

Make a match Box sing like Sinatra

The Curious Nature of Drummers’ Brains

Pump Up the volume or Knock, Knock Knockin on Your skull wall!

## Sound Math 2: Can you hear this high pitch sound?

September 30, 2021

One of the best summaries of sound can be found here at Maths is Fun

# Sound from 0-1000000 Hz in one minute(below)

Other Sound Math:

Make a match Box sing like Sinatra

The Curious Nature of Drummers’ Brains

Pump Up the volume or Knock, Knock Knockin on Your skull wall!

## Sound Math 3: How loud is LOUD?

September 29, 2021

The logarithmic equation for sound and the decibel calculator here

More here

Other Sound Math:

Make a match Box sing like Sinatra

The Curious Nature of Drummers’ Brains