You will find TWILIGHT TV series Math **here**.

## Posts Tagged ‘exponential’

## VAMPIRES: a math horror story

March 6, 2019## I Can’t Sleep: Caffeine Math Part 3 USA UNITS

August 14, 2018## I Can’t Sleep Math: Caffeine Maths METRIC **HERE**.

Sensitivity to caffeine varies for individuals, but in healthy adults the half life for caffeine is approx 6hrs meaning your body eliminates half the caffeine you have drunk in 6 hrs. Ref: **Caffeine Pharmacology**

Caffeine interferes with sleep. **One study** found that consuming caffeine **6 hours** before bedtime reduced total sleep time by **1 hour**.

Caffeine content sources **Caffeine Content Data Base**

Street art by **JEKS**, South Carolina

The Half life equation is an exponential function.

The **Mayo Clinic **advises up to 400mg Caffeine a day for adults, which would be;

10 black teas

7 instant coffees

4 cappuccinos

2 dark roast brewed

less than one cup of Black Insomnia Coffee.

Approx half this amount of caffeine for 14 yos.

## I Can’t Sleep: Caffeine Maths Part 3 METRIC

August 14, 2018## I Can’t Sleep: Caffeine Math USA UNITS **HERE**.

Sensitivity to caffeine varies for individuals, but in healthy adults the half life for caffeine is approx 6hrs meaning your body eliminates half the caffeine you have drunk in 6 hrs. Ref: Caffeine Pharmacology

Caffeine interferes with sleep. One study found that consuming caffeine **6 hours** before bedtime reduced total sleep time by **1 hour**.

Caffeine content sources Caffeine Content Data Base

Street art by JEKS, South Carolina

The Half life equation is an exponential function.

The Mayo Clinic advises up to 400mg Caffeine a day for adults, which would be;

9 black teas

6 instant coffees

4 cappuccinos

2 dark roast brewed

less than one cup of Black Insomnia Coffee.

Approx half this amount of caffeine for 14 yos.

## 3. Funky, Fab and Fantastic. Yeah! That’s Middle School Maths

October 10, 2016**Mathspig tried the m&m Algebra Challenge in her ICME 13 Workshop in Hamburg. **

**BUT … I bought PEANUT m&ms. OH Nooooooooo!**

**They were the WRONG SHAPE. Deformed m&ms bounced everywhere. All I could do was collect the m&ms in my gloved hands and hand them out to the workshop participants. They seemed to enjoy the failure. **

**But Mathspig does not give up that easily.**

**Here is the m&m ALGEBRA CHALLENGE with PLAIN m&ms. **

# The Great m+m ALGEBRA CHALLENGE

# Method:

**1. Open a packet of PLAIN m&ms. (Wear white Gloves like the m+ms)**

**2. TIP onto table. (Put a few books around the edge to define an area.)**

**3. Sort the m&ms into:**

**…m -UP pile.**

**…m-DOWN pile.**

**4. REMOVE the m-UP pile.**

**5. PICK up m-DOWN pile and TIP again.**

**6. REPEAT until only 1 m+m is left.**

**The pattern should follow the exponential equation here:**

**Did it work? Check it out below. **

**Who knew one family packet had 366 m+ms?**

**You’ll find a worked ‘theoretical’ example here.**

**Here’s the ANSWER:**

Try it. Middle school students have to see

that applying maths in the real world can be tricky but logical.

And a lot of FUN too.

## Double, Double, toil and trouble

August 6, 2013## How long will it take at the current rate for Australia to double its population?

……………………………………………………………………………………………………………………………………..