Symmetry

In maths this week, year 4 have been looking at lines of symmetry. The children practised using a mirror to decide whether lines dissecting 2-D shapes were lines of symmetry or not. They were then challenged to find all the lines of symmetry in the capitalised alphabet.

Teeth

In science, Year 4 have begun looking at teeth and digestion. The class learnt the names of different teeth in a human mouth and their functions. To demonstrate how each tooth is adapted to a specific purpose, the class tried eating a bite of an apple using their incisors to chew instead of their molars. The children then tried to create a model of the teeth in their mouth paying close attention to the size, shape and position of each tooth.

Chewing with your incisors is harder than it looks.

Maths: understanding area

In maths today, we looked at the difference between length, perimeter and area. We discussed examples of things that might need their area measured and why length and perimeter would not be appropriate measurements. Using plastic cubes as non-standard units, we estimated and measured the area of objects we could find in the classroom. We recorded our results and compared our estimates to our measurements.

World Book Day Week

For World Book Day Week, 4RI took part in a week of book themed activities including live lessons featuring this years World Book Day authors, illustrating a new cover for our favourite book and discussing Hillmorton’s World Book Day book Wild by Emily Hughes. We were also lucky enough to be joined by a story teller called Pyn who shared some fascinating stories from Norse mythology with us. Of course, on World Book Day we did not miss the opportunity to get dressed up as our favourite book character or wear our pyjamas to school.

Maths: recognising and writing decimal hundredths

In maths today, we worked together to represent different decimal hundredths on bead strings. We completed a variety of challenge cards where we had to create different decimal hundredths before answering questions about the numbers we had represented. When creating our representations, we had to remember that each coloured section on the bead string was equivalent to one tenth and each bead was equivalent to one hundredth. Some of us even challenged ourselves to create our own challenge cards for use in our future maths meetings!

Literacy – Ice Palace

In literacy this week, we began looking at the setting for our new class text Ice Palace by Robert Swindells. Working with a partner, we considered images and videos of landscapes, forests and villages covered by snow and ice. We then used these to help us generate some impressive expanded noun phrases. We will be using these later in the week as inspiration for our own ice themed free verse poems.

Calculating non-unit fractions of quantities

In maths today, we looked at calculating non-unit fractions of different quantities using our knowledge of times tables to help us. Using counters to represent a quantity we used known multiplication and division facts related to times tables to identify different fractions of that quantity. For example, when looking at the quantity 24 knowing that 24 divided by 4 is 6 meant we also knew a quarter of 24 is 6. Once we had calculated the unit fraction for a quantity we could then multiply this by our numerator to find the non-unit fraction. So we could say 3/4 of 24 is 6×3=18.

Identifying living things and their habitats

This week in science, we explored the local environment looking for evidence of living things and their habitats. We used leaf and insect identification guides as well as record keeping sheets to observe and identify the living things outdoors on our school site. We had a go at sketching some of our discoveries, as part of our observations, and recorded where they were found.

Science: How sound travels

This week, we looked at how sounds are created by vibrations that travel in sound waves from a sound source to our ears. We learnt that in order to hear a sound the sound wave needs to travel through a medium such as a solid, a liquid, or a gas and that sounds do not travel in a vacuum ( like outer space). As scientists, we experimented with making our own string telephones to transmit our voice across a short distance. By sharing our ideas, we identified the features of a successful string telephone and talked about how this made sense based on our understanding of sound. Finally, we tested our telephones by reading words to a member of our group, who was listening at the other end of the line and recording what they could hear.