Needful-motivational tasks as an effective condition for the technical training of schoolchildren aged 11-12 during the training of the volleyball section by Nagovitsyn, R.S., Kudryavtsev, M.D., Osipov, A.Yu, Altuvaini, A.H., Markov, K.K., Doroshenko, S.A., Kuzmin, V.A., Savchuk, A.N., Kamosa, T.L., Plotnikova, I. I.

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