Pupils can better understand and master the knowledge of counting with counters. Counter is generally composed of plastic counting beads, arched metal bars, plastic bases, baffles, digital sequence tables, etc. Generally, there are nine counting beads in each column (using decimal counting method). Common primary school students' counters are generally five columns, and a * * * has 45 counting beads (some counters have more columns and more counting beads). Let's see what the primary school counter looks like. 1. What does the counter for primary school students look like?

Students in lower grades usually react positively to playing with numbers and building objects. Using counters can intuitively show them abstract mathematical knowledge and concepts, help students to establish the representation of numbers, and enable students to understand and master the knowledge of numbers initially. What does the counter look like?

The counter used by primary school students is also called vertical five-gear counter and five-gear calculation rack, which is generally composed of plastic counting beads, arched metal rods, plastic bases, baffles, numerical sequence tables, etc. The corresponding bases in each column are labeled as 10, 100, 1000 and 10 from right to left. There are also some counters that have more columns and can represent larger numbers. )

Counter is used in mathematics teaching for children and primary schools. Students can experience the intuitive model of numbers by dialing beads on the counter and writing numbers under the counter. By drawing beads, they can concretize abstract numbers and understand the concept of numbers more vividly. The counter is simple in structure and convenient to use, and is suitable for students to use in one set.

Second, how many beads are there at the counter?

A counter generally has five columns, and some beads on each column represent numbers. How many beads are there on the counter?

There are 9 beads in each column of the counter, because we use the decimal counting method, and each digit has at most nine beads. When it is ten, it will advance to the next number, and there are five columns in total, so it adds up to 45 beads.