implementation CHAPTER subject used will virtual lab experiment teacher very usually interesting 2nd there matter good lecturer conclude teaching senior related researcher textbook already understand especially ha make standardize extension proces 2013 perception based BSNP some result solution student school wa provided could analysi learning research discussed important curriculum buffer innovative innovatively data after doing respond content SUGGESTION interested integration stage must specific design grade depth practicum composed use conclusion XI learn CONCLUSION criteria guide chemistry semester suggestion topic arranged module language more standard interactive high