<< Chapter < Page Chapter >> Page >

Wiskunde

Graad 4

Ruimte en vorm, patrone, datahantering

Module 15

Driedimensionele voorwerpe uit die omgewing

AKTIWITEIT 1:

Om driedimensionele voorwerpe uit die omgewing met betrekking tot geometriese eienskappe te ondersoek en vergelyk en deur driedimensionele modelle met uitgeknipte veelhoeke te maak

[LU 2.2, 3.2, 3.3, 3.5, 4.8]

1. Ondersoek van ruitnette: kartondose.

Jy het die volgende kartondose nodig: graanvlokkiedoos; 'n kartondosie waarin tee verpak was, en nog meer. Maak die dele waar die kartondose geplak is, versigtig los sodat jy die kartondoos plat op die tafel kan neerlê. Bestudeer die plan of ruitnet van die kartondoos.

2. Voordat jy die ruitnet hieronder uitknip, moet jy kolletjies soos vir 'n dobbelsteentjie op die verskillende vlakke invul. Knip dan die net uit, vou dit op die lyne langs om 'n kubus te vorm en plak dit met kleeflint. Kyk na 'n werklike dobbelsteentjie om te sien of jy die getalle kolletjies korrek aangedui het.

3. Knip die vorm onder die tabel hier onder uit en vou dit langs die lyne om 'n piramiede (viervlak of tetraëder) met drie kante en 'n driehoekige basis te vorm.

4. Kyk nou na die ruitnette van die graanvlokkiedoos ('n reghoekige prisma); die kubus wat jy self uitgeknip het en die tetraëder om hierdie tabel te kan voltooi:

Voorwerp Aantal vlakke Plat of geronde vlakke Aantal hoekpunte Aantal kante
Reghoekige prisma
Kubus
Tetraëder

Aktiwiteit 2:

Om simmetriese-lyne in tweedimensionele vorms, insluitend natuurlike en kulturele kunsvorms, te herken en te beskryf [LU 3.4]

1. PROJEK.

  • Versamel soveel verskillende blare as moontlik. Kyk of hulle presies in die helfte gevou kan word sodat die twee helftes identies is. As dit moontlik is, is die lyn waarlangs hulle gevou word, die SIMMETRIE-LYN. Plak jou blare op 'n vel karton, dui die simmetrie-lyn aan en versier die klas daarmee.
  • Versamel blomme en doen dieselfde met hulle.

2. Vorms.

2.1 Knip die vorms op die volgende bladsy uit. Kyk of elkeen van hulle presies in die helfte gevou kan word. Dié vou is ook 'n simmetrie-lyn. Gebruik 'n liniaal en trek 'n stippellyn op die vou langs. Sommige vorms het meer as een simmetrie-lyn. Onthou dat die helftes identies moet wees. Teken al die symmetrie-lyne en plak die vorms op die figure hier onder. Gebruik byskrifte om die simmetrie-lyne aan te dui.

2.2 Maak ook ander vorms, byvoorbeeld 'n sirkel, en vou dit om te sien of daar simmetrie-lyne is. Plak hulle ook op 'n skoon vel papier. Gebruik byskrifte om die simmetrie-lyne aan te dui.

Aktiwiteit 3:

Om die verandering van aansig van 'n voorwerp wat vanuit verskillende posisies gesien word te beskryf [LU 3.7]

Wanneer ons 'n groot gebou van die voorkant af sien, weet ons dat dit nie dieselfde sal lyk as ons agter of aan die kant van die gebou staan nie. Dit sal ook nie dieselfde lyk as ons by 'n hoek van die gebou staan nie.

1.

1.1 Gaan gou buitentoe en kyk van die voorkant af na die skool.

1.2 Stap om die gebou na agter en kyk weer daarna.

  • Nou moet jy na die een kant toe stap en die skoolgebou van die kant af beskou.
  • Ten laaste moet jy by een van die hoeke van die skoolgebou gaan staan om te kyk hoe dit daarvandaan lyk.

Questions & Answers

what does preconceived mean
sammie Reply
physiological Psychology
Nwosu Reply
How can I develope my cognitive domain
Amanyire Reply
why is communication effective
Dakolo Reply
Communication is effective because it allows individuals to share ideas, thoughts, and information with others.
effective communication can lead to improved outcomes in various settings, including personal relationships, business environments, and educational settings. By communicating effectively, individuals can negotiate effectively, solve problems collaboratively, and work towards common goals.
it starts up serve and return practice/assessments.it helps find voice talking therapy also assessments through relaxed conversation.
miss
Every time someone flushes a toilet in the apartment building, the person begins to jumb back automatically after hearing the flush, before the water temperature changes. Identify the types of learning, if it is classical conditioning identify the NS, UCS, CS and CR. If it is operant conditioning, identify the type of consequence positive reinforcement, negative reinforcement or punishment
Wekolamo Reply
please i need answer
Wekolamo
because it helps many people around the world to understand how to interact with other people and understand them well, for example at work (job).
Manix Reply
Agreed 👍 There are many parts of our brains and behaviors, we really need to get to know. Blessings for everyone and happy Sunday!
ARC
A child is a member of community not society elucidate ?
JESSY Reply
Isn't practices worldwide, be it psychology, be it science. isn't much just a false belief of control over something the mind cannot truly comprehend?
Simon Reply
compare and contrast skinner's perspective on personality development on freud
namakula Reply
Skinner skipped the whole unconscious phenomenon and rather emphasized on classical conditioning
war
explain how nature and nurture affect the development and later the productivity of an individual.
Amesalu Reply
nature is an hereditary factor while nurture is an environmental factor which constitute an individual personality. so if an individual's parent has a deviant behavior and was also brought up in an deviant environment, observation of the behavior and the inborn trait we make the individual deviant.
Samuel
I am taking this course because I am hoping that I could somehow learn more about my chosen field of interest and due to the fact that being a PsyD really ignites my passion as an individual the more I hope to learn about developing and literally explore the complexity of my critical thinking skills
Zyryn Reply
good👍
Jonathan
and having a good philosophy of the world is like a sandwich and a peanut butter 👍
Jonathan
generally amnesi how long yrs memory loss
Kelu Reply
interpersonal relationships
Abdulfatai Reply
What would be the best educational aid(s) for gifted kids/savants?
Heidi Reply
treat them normal, if they want help then give them. that will make everyone happy
Saurabh
What are the treatment for autism?
Magret Reply
hello. autism is a umbrella term. autistic kids have different disorder overlapping. for example. a kid may show symptoms of ADHD and also learning disabilities. before treatment please make sure the kid doesn't have physical disabilities like hearing..vision..speech problem. sometimes these
Jharna
continue.. sometimes due to these physical problems..the diagnosis may be misdiagnosed. treatment for autism. well it depends on the severity. since autistic kids have problems in communicating and adopting to the environment.. it's best to expose the child in situations where the child
Jharna
child interact with other kids under doc supervision. play therapy. speech therapy. Engaging in different activities that activate most parts of the brain.. like drawing..painting. matching color board game. string and beads game. the more you interact with the child the more effective
Jharna
results you'll get.. please consult a therapist to know what suits best on your child. and last as a parent. I know sometimes it's overwhelming to guide a special kid. but trust the process and be strong and patient as a parent.
Jharna
Got questions? Join the online conversation and get instant answers!
Jobilize.com Reply

Get Jobilize Job Search Mobile App in your pocket Now!

Get it on Google Play Download on the App Store Now




Source:  OpenStax, Wiskunde graad 4. OpenStax CNX. Sep 18, 2009 Download for free at http://cnx.org/content/col11100/1.1
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'Wiskunde graad 4' conversation and receive update notifications?

Ask