Allan Duncan
Profile Of : Allan Duncan
![user](fileadmin/user_upload/ti-default.jpg)
![P11](/fileadmin/_processed_/8/3/csm_p11_02c6a0ba1c.jpg)
Recognise a quadratic in a realistic context and solve an optimisation problem
Publisher: Texas Instruments UK
Editor: Barrie Galpin
Author: Allan Duncan
Topic: Mathematics
![08192010 Image001](/fileadmin/_processed_/d/2/csm_08192010Image001_b87de8c3cc.jpg)
Areas of squares ...or lengths of sides, squared?
Publisher: Texas Instruments UK
Editor: Barrie Galpin
Author: Allan Duncan
Topic: Mathematics
![S1](/fileadmin/_processed_/e/e/csm_s1_5273acaeab.jpg)
Investigate relationships between radii of the semicircles and the perimeter and area of this interesting shape
Publisher: Texas Instruments UK
Editor: Barrie Galpin
Author: Allan Duncan
Topic: Mathematics
![09232010 Image002](/fileadmin/_processed_/2/d/csm_09232010Image002_90a52ee7a3.jpg)
Derive the formulae for the circumference and area of a circle using multiple representations.
Publisher: Texas Instruments UK
Editor: Barrie Galpin
Author: Allan Duncan
Topic: Mathematics
![09272010 Image018](/fileadmin/_processed_/3/0/csm_09272010Image018_6792151a61.jpg)
Distinguish between mean and median from a dot plot
Publisher: Texas Instruments UK
Editor: Barrie Galpin
Author: Allan Duncan
Topic: Mathematics
![02072011 Image007](/fileadmin/_processed_/4/3/csm_02072011Image007_312e63297b.jpg)
You have been left one million pounds! How to spend or invest it over 50 years?
Publisher: Texas Instruments UK
Editor: Barrie Galpin
Author: Allan Duncan
Topic: Mathematics
![03162011 Image001](/fileadmin/_processed_/7/6/csm_03162011Image001_8992f0fd2e.jpg)
Connecting Algebra, Geometry and Graphs
Move from words to symbols, to geometric representations, to plotted points and finally to graphs.
Publisher: Texas Instruments UK
Editor: Barrie Galpin
Author: Allan Duncan
Topic: Mathematics