Year 2, Term 4: Algebra and algorithmsFocus: FormulasScope and sequence: Algebra, Algorithms 

Learning
intention: Students
explore number patterns as an introduction to algebra and
algorithms.


NSW Syllabus

Australian Curriculum
(version 9.0)

"A student describes, follows and
represents algorithms to solve problems." (ST13DPT)

"Students learn to recognise,
describe and create additive patterns that increase or decrease
by a constant amount, using numbers, shapes and objects, and
identify missing elements in the pattern." (AC9M2A01)

Number formula activity
Number guessing game
The game is played again with a student running the game.
The next stage with this activity is to contrast good guesses such as "Is it lower than 50?" with random guesses such as "Is it 87?" This can then be used as an introduction to algorithms where the aim is to narrow down the options.
Introduction to algebra
What's in the black box?
The following video (8:59) provides another introduction
to algebra using boxes.
Geometric patterns
https://davidwees.com/content/patternsandalgebra/
Algorithms in other curriculum areas
The following video (2:09) shows how algorithms are also
used in other curriculum areas.
Algorithms and pseudo code
The following video (4:58) explains algorithms using a
counting example and pseudo code.