Jans blogg

Statistik - Frequency and Relative Frequency
Homework for 8c for Friday May 10, 2019.

Look up the meaning of the terms Frequency (frekvens) and Relative Frequency (relativ frekvens) when dealing with statistics. Be prepared to explain in your own words and to come up with examples.

NB, Frequency is called Frequency Distribution on some sites.

Statistik - Typvärde, median och medelvärde
Texter skrivna av 8c 9.5.2019

Mode (Typvärde) 

The mode is the nummer used most in a batch of random number for ex. In the batch 7,7,8,9,2,4 the Mode is 7 because it’s used the most. 

Median (Median)

Medianen är då man har ett ojämnt antal tal och medianen är det mittersta talet t.ex 3,4,5,6,7 då är 5 median talet. Om man har 4,6,2 då är mediantalet 4. För mängder med ett jämnt antal tal är medianen medelvärdet av de två 

Mean (Medelvärde)

Ett medelvärde fås genom att addera alla angivna tal och sedan dividera dem med antalet tal.  

Ex.

3 5 4 6 

3+5+4+6=18   

18:4=4,5

Medelvärdet är alltså: 4,5

Medelvärde kan man använda när man ska mäta statistik i stora grupper.

HMa6 3.13.2 Tangentvinkel

Homework for 8c for Friday, May 3 2019.

HMa6 3.13 Vinklar i en cirkel
Something to do for 8c for Tuesday, April 30 2019.

HMa6 3.12.2 Sektorns area

Homework for 8c for Friday, April 26 2019.

HMa6 3.12 En cirkels area
8c's homework for Thursday, April 25 2019.

HMa6 3.6.2 Areaskala

8c's homework for Thursday, March 28 2019.

Please watch this video on scale factors and area from Kahn Academy:

HMa6 3.6 Tillämpningar med likformighet
This is not homework, just a video we'll watch together.

HMa6 3.5.2 Skala
Very late homework for 8c... 

HMa6 3.5 Likformighet och skala
Homework for 8c for Thursday, March 14 2019

HMa6 3.2 Symmetri i koordinatsystem
Homework for 8c for Friday, March 8 2019.

Please watch this video. 

No questions today.

Homework for 8c for Thursday, March 7 2019.

No questions today, just a kind reminder to bring a compass (w/ pencil) and a ruler/straight edge to class.

https://www.khanacademy.org/math/basic-geo/basic-geo-transformations-congruence/congruent-similar/e/exploring-rigid-transformations-and-congruence - i Practise får man genom rotation, spegling och translation kontrollera om två figurer är kongruenta.

Facit till övningen inför provet

Homework for 8c for Valentine's Day, Thursday, February 14 2019. Video by Nina (igen)

Be prepared to answer questions like the ones in the video!

HMa5 2.13.2 En punkt på linjen
Homework for 8c for Monday, February 11, 2019. Video by Nina.

Homework for 8c for Friday, February 8, 2019.

HMa5 2.12.2 Linjens nollställe

8c's homework for Thursday, February 7, 2019.

HMa5 2.12 Linjens ekvation

8c's homework for Wednesday, February 6, 2019

Homework for 8c for Friday, February 1, 2019.

HMa5 2.10.2 Direkt proportionalitet (forts)
Homework for 8c for Thursday, January 31 2019. Video by Robin.

HMa5 2.8.2 Fler ekvationer med bråk
Homework for 8c for Tuesday 22, January 2019.

Click here to go to the questions!

8c's homework for Wednesday, January 16 2019

8c's homework for Tuesday, January 15 2019.

You will get a small test on multiplication of polynomials. You can prepare by reviewing chapter 2.6.

Something to do for 8c for Friday January 11, 2019

8c's homework for Thursday January 10, 2019

Homework for 8c for Wednesday, January 9, 2019. Video by Richard.

Homework for 8c for Thursday December 13, 2018.

Video by Richard:

Homework for 8c for Wednesday, December 12 2018.

-=> questions <=-

Homework for 8c for Tuesday December 11, 2018.

Then, please solve these:

Homework for 8c for Friday December 7, 2018.

HMa5 2.2 Division av potenser med samma bas
Homework for 8c for Tuesday December 4, 2018

Sidan två av facit till övningspappret syns tydligen inte för alla. Här är den. Sida 1 borde synas en bit ner.

530,531,537-539 på sidan 89 i boken.

Facit till övningen inför provet:

On Tuesday we'll do revision for the test on Thursday. Please have a look at chapters 1.7 - 1.14. If there are exercises you want us to look at togheter, please drop me a line and let me know!

HMa5 2.1.2 Multiplikation av potenser med samma bas

8c's homework for Thursday, November 8, 2018.

HMa5 2.1 Potenser

Homework for 8c for Tuesday, November 6, 2018

We'll save the revision chapter 1.14 for later (test November 15!) and start with the next chapter instead. No video this time, but please take the time to read about exponents here: https://www.mathsisfun.com/exponent.html

Then, answer the ten questions at the bottom of the page:

When you're finished, you'll get the result. Something like this:

Screenshot your result and upload it to this padlet. Please remember to include your name!

HMa4 1.13.2 Blandningsberäkningar

Homework for 8c for Thursday, November 1, 2018.

HMa4 1.13 Tillämpningar med procent
8c's homework for Tuesday, October 30, 2018.

Homework for 8c for Thursday, October 25, 2018.

HMa4 1.10 Höjning och sänkning
8c's homework for Tuesday, October 9, 2018.

Please click here for a short Kahoot! Remember - you'll need the Kahoot!-app.

Harry will be your teacher this week. Be nice to him!

Homework for 8c for Wednesday, October 3, 2018

Sorry, forgot to post your homework earlier. As I’m sittning on a train with bad wi-fi, I’ll make things easier for me by just posting this link for you to follow: 

https://jalin.posthaven.com/hma4-1-dot-8-2-att-berakna-en-viss-andel-1

Be nice to Harry!

HMa4 1.8 Procent och andel
8c's homework for Thursday, 20 September

HMa4 1.7.2 Sambandet mellan procentform och decimalform
8c's homework for Wednesday, 19 September

8c's homework for Wednesday, 12 September 2018

HMa4 test 1 of 2

8c's homework for Thursday, 6 September 2018

Prepare for the test on Friday. If there are any wxercises in particular you want to revise during the lesson, please let me know on Wilma, or at the beginning of the lesson.

Questions? I'm just a Wilma message away! ;-)

HMa4 1.5.2 Räknesättens ordningsföljd i bråkräkning
Homework for 8c for Wednesday, 5 September 2018

HMa4 1.5 Räkna med bråk
Homework for 8c for Friday, 31 August 2018.

Homework for 8c for Thursday, 30 August 2018.

HMa4 1.4 Inverterat tal och division av bråk

Homework for 8c for Wednesday, 29 August 2018.

Homework for 8c for Friday, 24 August 2018.

Homework for Thursday, 23 August 2018.

Homework for Wednesday 22 August 2019.