## Posts Tagged ‘calculate’

## Trick 3: Maths Swami Knows Your Age and Foot Size

July 9, 2018## That Crazy Little Thing Called ZERO

July 4, 2018## Trick 6: Freaky Math Medium

May 27, 2018### Write the word carrot inside your math text book. Do not show students.

### When Mathspig was a mathspiglet we used to play this trick. It doesn’t work on everyone, but it works often enough.

### Ask a student to say 15 times 15 fifteen times.

### Then ask them to name a vegetable. Students say carrot 90% (I’m guessing) of the time.

### To make this trick more dramatic send 10 students out of the class before you begin and tell the other half what you are about to do. Students return one at a time. How often do they say ‘carrot’? What % of students say carrot?

## Maths News: Volcano Survivor 1

May 8, 2018# Kilauea erupts in Hawaii MAY 2018.

# The amazing maths of volcano eruptions.

# Can you out run a lava flow?

In every volcano disaster movie from **Volcano** (1997) with Tommy Lee Jones to **Dante’s Peak** (1997) with Pierce Brosnan someone somewhere tries to out run a lava flow.

Is this possible? (See movie cliché busted by maths here.)

Now a lava flow from Hawaii’s Kilauea volcano is threatening tiny town of Pahoa, Hawaii again. (below).

You will find excellent information about the Kilauea and other volcanoes at the

US Geological Survey here.

# How to stop lava?

As the temperature of lava exceeds 1000^{0} C there are very few ways to stop lava. According to the Taylor Kate Brown SMH (10 SEPT 2014) options include:

Bombing

Blasting (it with cold water)

Barricading it

Or adding concrete.

# What if you are on your own.

# Can you out run lava?

# Lets do the maths.

Lava from Kilauea travels 17 yards per hour so the lava velocity is:

V_{L} = 17 yds/hour = 15.5 metres /hour

(See Vox.com)

## 1b. The WORLD POPULATION as ONE BIG CROWD … USA Units

December 8, 2017## 8b. How much blood can YOU lose and survive? ……………METRIC

August 16, 2017# The Complaint

## 8b: When will I EVER use this maths?

# The Cause:

#### Students doing repetitive text book exercises without using maths to solve REAL WORLD problems.

**The Solution:**

## You are going to use this maths NOW…………………..

## ……………………………………………………………………………….

## How much blood can YOU lose and survive?

## ………….METRIC UNITS

Remember the best calculator to use is the **WEB 2.0 Calculator** as it shows the worked equation as you go.

**CAREERS:** It’s not only health workers who need to understand these calculations, but also creatives running health campaigns online, on TV, radio and in magazines.

# TOPICS: Decimals, %, algebra, vol, weight units (METRIC)

PDF WORKSHEET HERE:**How**** much blood can you lose and still survive? WORKSHEET METRIC**

## 8b. How much blood can YOU lose and survive? ……………USA Units

August 16, 2017# The Complaint

## 8b: When will I EVER use this maths?

# The Cause:

#### Students doing repetitive text book exercises without using maths to solve REAL WORLD problems.

**The Solution:**

## You are going to use this maths NOW…………………..

## ……………………………………………………………………………….

## How much blood can YOU lose and survive?

## ………….USA Units

Remember the best calculator to use is the **WEB 2.0 Calculator** as it shows the worked equation as you go.

**CAREERS:** It’s not only health workers who need to understand these calculations, but also creatives running health campaigns online, on TV, radio and in magazines.

# TOPICS: Decimals, %, algebra, vol, weight units (USA UNITS)

PDF WORKSHEET HERE:How much blood can you lose and still survive? WORKSHEET USA UNITS