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Mathematics

Mathematics in the world around us

Educator section

Memorandum

Critical and developmental outcomes:

The learners must be able to:

1. identify and solve problems and make decisions using critical and creative thinking;

2. work effectively with others as members of a team, group, organisation and community;

3. organise and manage themselves and their activities responsibly and effectively;

4. collect, analyse, organise and critically evaluate information;

5. communicate effectively using visual, symbolic and/or language skills in various modes;

6. use science and technology effectively and critically, showing responsibility towards the environment and the health of others;

6. demonstrate an understanding of the world as a set of related systems by recognising that problem-solving contexts do not exist in isolation;

7. reflect on and explore a variety of strategies to learn more effectively;

8. participate as responsible citizens in the life of local, national, and global communities;

9. be culturally and aesthetically sensitive across a range of social contexts;

10. explore education and career opportunities; and

develop entrepreneurial opportunities.

  • Integration of Themes: Friends
  • Social Justice: Friends should spend time together, e.g. playing games. Discuss in small groups what your attitude towards your friends should be when you play together.
  • A healthy environment: Why is sport important? Discuss the safety precautions needed when participating in sport at school.
  • Inclusively: Who should be allowed to participate in sport at school? Only team players? Or should the school accommodate everyone? Make you own graph of which learners participate in sport.
  • Number concept is extended to 50.
  • Counting in 2’s, 3’s, 4’s, 5’s and 10’s.
  • Calendar activities enable learners to order the months and revise ordinals.
  • Graph – a weather graph can be completed.
  • Bonds of 10 are introduced with many opportunities to reinforce these.
  • Measurement activities involving comparisons of height, length, width using related vocabulary.
  • Capacity – litre;
  • Identifying coins and shapes are included.

Leaner section

Content

Activity: money [lo 1.1, lo 1.4, lo 1.6, lo 1.9, lo 2.2, lo 3.1]

  • My friends and I have saved our money.

_______ _______ ________

LO 1.6

We visit the tuck shop:

Sweets 50c

Hotdogs R2

Chips 50c

Cool drink R1

Ice Cream R2

  • Sisulu has R5. He buys a hotdog and a cool drink. He spends ______. He has ______ left.
  • Draw the money he has left.
  • Tom has R10. He buys 2 hotdogs, 2 cool drinks and 2 ice creams. He spends ______. He has ______ left.
  • Draw the money he had.
  • Mo buys 2 packets of sweets and 2 packets of chips for his friends. He has spent all his money. How much money did he have to spend?
  • Draw the money he had.
  • 4 boys: each buys 2 hotdogs.

They buy _________ hotdogs.

They pay _________ altogether.

  • 3 girls: each buys 3 packets of sweets.

They buy _________ packets of sweets.

They pay _________ altogether.

  • 5 hotdogs: each has 1 sausage.

Mom needs _________ sausages for 10 hotdogs.

I pay R ________ for 5 hotdogs.

I pay R ________ for 10 hotdogs.

Try these:

Chips: 1 2 3 4 5 6 7 8 9 10
Money: 50c R1

Choose one to colour.

LO 1.6
  • Write their names:

11 ____________ 13 ____________ 17 ____________ 8 _____________

14 ____________ 10 ____________ 19 ____________ 12 ____________

18 ____________ 16 ____________ 15 ____________ 20 ____________

LO 1.4 LO 2.2
  • Say the answers to a friend, to Mummy or Daddy.
10 + 1 = 14 + 1 = 16 + 1 = 11 + 1 =
10 + 2 = 14 + 2 = 16 + 2 = 11 + 2 =
10 + 3 = 14 + 3 = 16 + 3 = 11 + 3 =
11 – 1 = 15 – 1 = 18 – 1 = 10 – 1 =
11 – 2 = 15 – 2 = 18 – 2 = 10 – 2 =
11 – 3 = 15 – 3 = 18 – 3 = 10 –3 =
12 + 1 = 17 + 1 = 13 + 1 = 15 + 1 =
12 + 2 = 17 + 2 = 13 + 2 = 15 + 2 =
12 + 3 = 17 + 3 = 13 + 3 = 15 + 3 =
19 – 1 = 9 – 1 = 14 – 1 = 17 – 1 =
19 – 2 = 9 – 2 = 14 – 2 = 17 – 2 =
19 – 3 = 9 – 3 = 14 – 3 = 17 – 3 =
8 + __ = 10 5 + __ = 10 10 – 7 = 10 – 4 =
6 + __ = 10 7 + __ = 10 10 – 5 = 10 – 2 =
2 + __ = 10 4 + __ = 10 10 – 6 = 10 – 9 =
LO 1.9

Mathematics and shapes:

  • Count all the triangles. ___________ triangles.
  • Count all the squares. ___________ squares.
  • Count all the rectangles. ___________ rectangles.
  • Look at the pattern from all the sides.
LO 1.1 LO 3.1

Assessment

Learning Outcome 1: The learner will be able to recognise, describe and represent numbers and their The learner will be able to recognise, describe and represent numbers and their relationships, and to count, estimate, calculate and check with competence and confidence in solving problems.

Assessment Standard 1.1: We know this when the learner counts to at least 100 everyday objects reliably;

Assessment Standard 1.4: We know this when the learner orders, describes and compares the following numbers:

1.4.1 whole numbers to at least 2-digit numbers;

1.4.2 common fractions including halves and quarters;

Assessment Standard 1.6: We know this when the learner solves money problems involving totals and change in rand and cents;

Assessment Standard 1.9: We know this when the learner performs mental calculations involving:

1.9.1 addition and subtraction for numbers to at least 20;

1.9.2 multiplication of whole numbers with solutions to at least 20.

Learning Outcome 2: The learner will be able to recognise, describe and represent patterns and relationships, as well as to solve problems using algebraic language and skills.

Assessment Standard 2.2: We know this when the learner copies and extends simple number sequences to at least 200.

Learning Outcome 3: The learner will be able to describe and represent characteristics and relationships between two-dimensional shapes and three-dimensional objects in a variety of orientations and positions.

Assessment Standard 3.1: We know this when the learner recognises, identifies and names two-dimensional shapes and three-dimensional objects in the school environment and in pictures.

Questions & Answers

where we get a research paper on Nano chemistry....?
Maira Reply
nanopartical of organic/inorganic / physical chemistry , pdf / thesis / review
Ali
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
Google
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
hey
Giriraj
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
revolt
da
Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
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Source:  OpenStax, Mathematics grade 2. OpenStax CNX. Oct 15, 2009 Download for free at http://cnx.org/content/col11131/1.1
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