Categoría: 2ºESO Maths

 

Hi, as usual, mental calculations to warm up. Try to improve over the previous sessions:

1. https://chemarias.com/cm/tabla/index.html. Three attempts and one screenshot.

2. https://mathster.com/10secondsmaths/ . Use all the operations. Five minutes and one screenshot.

 

2. Some worksheets to solve, you can do the calculations in your notebook, and answer the question in the worksheet. Take a screenshot of your results:

a) https://www.liveworksheets.com/worksheet/en/math/2204003

b)https://www.liveworksheets.com/worksheet/en/math/2243372

c)https://www.liveworksheets.com/worksheet/en/math/684721

3. Another collection of word problems

Google doodle from Oct. 22, 2025.

 

 

Hi, today, as usual, we start with mental calculations. try to improve over the previous session:

1. https://chemarias.com/cm/tabla/index.html. Ten minutes and one screenshot.

2. Now we are going to use some applets from Javier Cayetano:

Mental calculations with fractions:

1. https://www.geogebra.org/m/AsMKtWd4#material/spxtxfjb
2. https://www.geogebra.org/m/AsMKtWd4#material/bfgmuzy9

3. At last, calculations in your notebook (remember to simplify):

https://www.geogebra.org/m/AsMKtWd4#material/ZpJbaxeD

And some Geogebra resources:

https://www.geogebra.org/math/fraction-operations

 

 

 

 

1. Mental calculations:

a)Mental Math: first 5 minutes of the class, send me a screenshot.

b) https://chemarias.com/cm/tabla/index.html. Five minutes more and another screenshot.

2. Practice converting fractions into decimal numbers. It’s easy. Paste the exercises in a word document and write the answers there. This is the document (2 pages):

decimals-comp-packet (arrastrado)

3. Now some problems, that you must paste and solve in the same document, writing all the operations (2 pages as well):

decimals-comp-packet (arrastrado) 2

4. Don’t forget to send me the word document at the end of the class.

Bonus videos:

 

 

 

Howdy

We are starting today with decimal numbers (Unit 1.1), but first of all some mental math:

1. New web to try: Mental Math : first 10 minutes of the class, send me a screenshot.

 

2. We are using Geogebra to explore the infinity, pay attention. Send me a screenshot.

3. This is a calculator with great precision.

4. Open this pdf and create a word document solving the exercises in these pages of the pdf. At the end of the class, send the document to me.

• Page 8 (the one after page 7)
• Page 9
• Page 11
• Page 13
• Page 14

 

Is it practice, or practise?

Well, let’s practise:

1. Mental calculations: first 10 minutes of the class, send me a screenshot of your best effort:
   1. https://mathster.com/10secondsmaths/
   2. https://chemarias.com/cm/tabla/index.html
2. Using the colection of geogebras of Javier Cayetano, they are useful to prepare exams, send a screenshot of each category:
   1. Cuatro números enteros.
   2. Powers
   3. Problems
3. Some Liveworksheets, useful as well, send screenshot when finished:
   1. Powers and roots
   2. Powers
   3. More problems

I forgot to tell you how I’m going to figure out the mark for your notebooks, with this rubric:

Hi

A couple of videos:

 

Howdy

Firts things first, we need to be sure to know the basics of the use of this classroom. Pay attention to the teacher.

Now, the most important resources:

1. This blog. https://edublog.educastur.es/ricardo/
2. Teams. I have to be sure that all of you can access your class Teams, including Maths, os course. There’s a thing with the password we should solve today. You need to know, as well, how to take a screenshot.
3. Geogebra, my favourite tool to lean maths.
4. My collection of Geogebra applets.
5. YouTube channel.
6. Symbolab, specially for algebra.
7. And the very first thing you are going to try is about mental calculations. We have to put our brains to work. The basic proof of your work will be screenshots, sent via Teams (using ypur private channel):
   1. Ten seconds of Math
   2. Cálculo mental
8. Now, time for some algebra.We are going to use Symbolab to check our calculations (ex. 16 and 17, p. 38).

 

And the BODMAS rule:

https://www.mathsisfun.com/operation-order-bodmas.html

 

 

Hi, some basic information to survive this year:

1. The most common terms:

100 Essential Mathematical Terms in English

2. A video.