Acid rain

Today we talked about how acid rain occurs and what the effects of the wild are and what we can do to improve the environment in the future. We made a small scene to show how acid rain arises and ends up in lakes and forests. 

We also did a theater of this, where Johan talks about how acid rain is formed and ends up in lakes. Emils mission was to save the lake and so he did by pouring chalk into the lake, to set up a bass. "Save the Lake" is what Hans Persson called the exercise in his book "Experiments with chemistry." 


A super fun conclusion to the lesson and no one will forget what acid rain does:)


http://www.youtube.com/watch?v=awOiG8QWn3U&feature=player_embedded#

Chemical symbols

We looked at the new chemical symbols in Europe from 2010. We compared with the old symbols and talked about each symbol. Then the students made those symbol. They were super nice! 

Joanna's fearsome symbol of toxic.

Think thousand

Each student drew up a game plan with 9 boxes. Like this:

Then we rolled a 1-6 dice and the students had to put the number anywhere they liked. When I got 9 numbers and all the boxes were filled you had to sum up the three-digit numbers. Anyone who received a total closest to 1000 won. 

Christoffer sums up. 

Look how happy Linn was when she won the sum 998.

It was a very popular practice and the class said "one more time ..." so we spent some time with this amazing exercise. I heard several comments that "this was great", "can we do this throughout the lesson?" So it was a success!

The path of numbers

Another tip from Margareta Forsbäck!

We drew up a game plan on the board, consisting of a path of boxes. We wrote 0 in the first box and 1000 in the last box. Then we rolled three 1-9 dice and wondered what numbers these three figures could form. The chosen number was placed in an appropriate place along the path. The goal is to produce numbers that can be placed in all blocks from 0 to 1000. The students were taking turns to roll the dice and choose which number that would be formed and placed in the path. 

Robin found a great box for his number.

Blob

You roll with three dice and then using the three figures to form a number between 1 and 42, you can use the four operations. For example 3 + 6-1 = 8, you then receive one point. You get an extra point for each adjacent square that is already taken. If you can´t make any free number you get a blob. The game ends when someone has three blotches (or whatever you determine yourself) and the one which has the most points wins.

This exercise practising concentration and mental arithmetic. It's also a lot of fun! 

Math-warm up

As a little warm up on the maths lesson you can do this little exercise as I did today in grade 5. Think I got the tip from Margareta Forsbäck. It can be adapted for use in all grades. Begin by distributing the paper in which students write a big equal sign on one side and a crossed out an equation on the other side. 

Then, put statements on the board, like 0.2  2/10 or 1/2  6/3 and let the students show up right sign. The class is immediately activated and hopefully even the rest of the lesson. 

Fun charts

Welcome back! 

A new semester with lots of fun are waiting ahead.

My students are very creative and this week we are making charts in a different way. They were all asking at least 50 individuals a question, for example "What is your favourite season?" Then they present the result in a chart, like this:

Do you like pizza?

Favourite season? A knitted one!

Favourite sport in a box

Bad habbits in your home?

Favourite country, with famous buildings and people.

Were do you like to travel to?

Concentration

A lot of small pieces...

Hanna did a handmade decoration around the circle.

What is your favourite soda?

Favourite season?

I am very happy about the results and we are having a lots of fun, classroom fun!