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Periodic Table

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December 2015 | Kathmandu

‘Periodic Table’ is another digital learning activity that has been recently developed by OLE Nepal on the basis of an objective of National Curricula for Grade 8. This lesson aims to help learners explore the periodic table on their own. The lesson begins from an ‘element’, basic unit of the periodic table.

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In this activity, the user will learn about the formation of the molecules and compounds from the elements. Some of the common examples are shown with their molecular structures as well.

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Gradually, a short animation is given in the slide to represent the orbital movement of an electron in the shell of an atom.

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The lesson has left some space for the user to encourage ‘thinking habit’. We hope the squirrel displaced on the screen would energize learners.

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There is a separate section i.e.‘Do It Yourself,’ where user is asked to fill up an expected answer. If the user makes mistake, an activity allows him/her to try again and if needed, hint is already provided.

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At least for the first 20 elements in the periodic table, some of the basic information are given. For this, user has to select any element from the list. This is an example of simple interactivity to grab the interest of the user.

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A short introduction of Mendeleev, who had arranged 60 elements in his own periodic table, is also given in the lesson. This may allow the learner to know the person who had brought up such wonderful idea to arrange the elements.

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Similarly, such colour codes are again used to separate elements from the rest of the group members. For examples, s, p, d and f blocks are displayed with four different colours so that users can easily check and refresh their minds.

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We have given two different levels of exercises. The second level of exercise belongs to some questions along with four similar hints where user has to click on the box with correct answer. The score keeps on adding with an increasing number of correct answers and empty box is filled with a green colour. Otherwise, red colour symbolizes wrong answer. If in case, user clicks on the wrong answer, there is a provision of multiple clicks unless right answer is detected. Finally, the user can have an opportunity to self-evaluate through the scores that will be displayed in the score board.

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