SU11313A1 - Tutorial for performing and demonstrating arithmetic on numbers up to 10 - Google Patents

Description

To perform and de-unite the arithmetic operations above. numbers up to ten are known Irimshie boards or boards with signs of arithmetic actions and with horizontal and vertical graphs, between which are placed the numbers TS.SS. numbers representing the result of four arithmetic operations on numbers. For the same purpose, it is also known to use an -frame with retractable slats, onabuse signs and interlocking other designations in graphs or stripes on shields. In the proposed tutorial, a pair of plug-in shields are used, provided on the sides of the net of Evadratav setals to search for numbers representing the results of one of the four arithmetic operations, and twenty pull-out slats placed in one or another shield in the layers, respectively, the lines of graflenization of the latter and Prednaevsevnyh to expose the same squat, mainly because the result of the arithmetical study of aaipHBUME studied.

Pa drawing FIG. 1 Shows the view of the proposed study tool saverhu; FIG. 2 - the same, if done

multiply; FIG. 3-shielding pp exits; multiply; FIG. 4 - Pone. River section of the proposed training manual.

The proposed tutorial consists of a wooded wooden frame 1 (Fig. 1 and 4), which has a slit 2 on one side for pushing one of a pair of shields 3 (Fig. 3), and a slit 4 on the other side for pushing ten identical battens 5, covering the top of the shield 3, and on the third side - the slit 6 for pushing the same ten odnovmovyk (lath 7, peschryshynrh rey-, k® 5 in perlshryulyarny direction to them towards them. The ends of the retractable yards 5 and 7 protrude the frames 1a are equipped at the ends of the opening and the 8th grab of the reiki with the help of a wooden stud when moving it in and out of the we 1. On one of the shields 3, on one side, there is a grid of one hundred quadructKKOiB — ten) in each) —ravLeNII — with a circular pattern in them, representing the results of multiplying the numbers from one to ten, and on the other side, the same with the result of dividing the same numbers placed in it. On the second shield 3 in such and; e

the grids are plotted on one eto), the results of the addition, and on the other, the results of subtraction from the units to the units. The sides of the Evadratiki grid are equal to the width of retractable rails 5 and 7.

On the bar 9 of the frame 1 there is applied on top of the TTZs the order of numbering of the outlined rails 5, and on the bar 10 the hash on the shr-avo-lyur dkyta SHEUMERATION of the day of the rails 7. Both. Schchga 3 shoots from the frame 1, the striking part of And, ka Komopdi, according to the assignment of the school “to the strut,” piece 12, artworking actions: +, - X And:.

The way of using this tool is as follows: ONE of shields 3 is moved into frame 1 with a table of results of a teachable arithmetic action, and shield 3 is moved so that the required grid table is facing up. The advances then of those of the rails 5 and 7, the numbers of which in bars 9 and 10 correspond to the numbers given in the example, open on the grid of the shield 3 that square on which the result of the arithmetic operation is given. When dividing and subtracting, digits of dividend and diminutive are taken on sliding rails 5

(Fig. 2). On the grids with the results of dividing and subtracting there are a number of empty squares corresponding to cases where the problem is possible.

Subject Patent a.

Training manual dl. performing and deconstructing arithmetic operations on numbers up to ten, characterized by the use of - a pair of shields 3 and 1 of 5,7 races, from which shields 3 are provided: on both rthorns, with signs of arithmetic actions and mutually perpendicular graphs forming squares for the numbers of numbers that represent the results of four arithmetic operations with the number from one unit to another. Twenty retractable rails 5 and 7, located in frame 1. Above this or that shield 3 in two layers, corresponding to the lines of graphene, are intended to expose that of the squares of the boards, which will have the result of the arithmetic action under given numbers, pushing one rail from each layer below the corresponding figures from the 9 JF 10 frames applied to the bars 1 figures from one to de slity (fig. 1-3).