NOTE : this may be a sensitive issue for some children).(KS2)Children could design their own leaflet or poster.(KS2)Numeracy and information and communication technology (ICT) links Activities related to numeracy objectivesObjectivesrelevant toNCyearDraw a circle of 10cm diameter to represent a fungus cell. Now look in books to find relative sizes of other microbes and draw circles with different diameters to show the relative sizes – add drawings of eachtype of microbe to the paper circles and make a display.Enter figures into a spreadsheet (see below*) or use a calculator to double a number over and over again tomodel the increase in a population of bacteria (assume one bacterium splits into two every 30 minutes). How many will there be in an hour, after 6 hours, 12 hours, 24 hours?Draw a graph of the results of the calculation above. This should be a line graph – help children with scale– you may only be able to graph a few hours!Y4/5Y5/6Y6Information and Communication Technology LinksRelating toQCA unit:*Enter figures for bacterial growth into a spreadsheet and add a formula that will automatically calculate the next entry for a time 30 minutes later as a doubling of the previous figure . Use the computer to generate a line graph showing the results.Use a computer to design a leaflet e.g. using microsoft publisherthat gives information about vaccination e.g. against tetanus … include design to show hat might happen to you if you got ‘lockjaw’.6B4D, 5C- -68
Copiable worksheet 8.1: Lower juniors YeastballoonsPut some water into 5 soda-pop bottles. Add different things to each one as shown below. Shake the bottles to mix them up.When you have finished put a different coloured balloon over the top of each bottleInsert drawings 8.5Put yeast and sugar in this one.Keep it in a warm placePut yeast and sugar in this onePut it in a cold place.Put only yeast in thisone – NO SUGAR!Keep it in a warm placePut yeast and sugar in this oneGive it to your teacher to boil the mixturePut only sugar in thisone – NO YEAST.Keep it in a warm placeLeave your experiment for about an hour and then record what you see in this tableBalloon colourWhat the bottle containedWhat has happened?What can you see inside the bottle?What happened to some of the balloons?Why did some balloons get bigger than othersCould it be the yeast that has done this or the sugar ? How can you tell from your results?- -69
What might be made by the yeast that could make the balloons get bigger?Why didn’t the yeast work when it had been boiled?Copiable worksheet 8.2: Upper juniors Let’s make a super radishGardeners often hold competitions to see who can grow the biggest leek, onion and so on. Some people say that they grow huge vegetables by giving their plants lots of fertiliser.