\u0136\u012bmijas skolot\u0101jam ir stunda, un vispirms vi\u0146\u0161 v\u0113las noskaidrot skol\u0113nu iepriek\u0161\u0113j\u0101s zin\u0101\u0161anas par tilpuma un svara m\u0113r\u012bjumiem. Vi\u0146\u0161 s\u0101k ar skaidrojumu, ka \u0137\u012bmijas laboratorij\u0101s skol\u0113niem ir j\u0101sp\u0113j prec\u012bzi samais\u012bt da\u017e\u0101dus \u0161\u0137idrumus prec\u012bz\u0101s proporcij\u0101s. T\u0101p\u0113c vi\u0146\u0161 jaut\u0101, vai k\u0101ds var pateikt, cik ir viens litrs. Tas ir tikpat daudz, cik piena kast\u012bt\u0113, saka viens students. Skolot\u0101js jaut\u0101, cik daudz \u0161\u0137idruma ir iepakojum\u0101, izsakot decil\u012btros, centilitros vai mililitros. Tas ir atkar\u012bgs no t\u0101, vai iepakojum\u0101 ir \u016bdens, piens, jogurts vai s\u012brups, jo \u0161\u0137idrumiem ir at\u0161\u0137ir\u012bgs svars,” atbild cits skol\u0113ns. Tas t\u0101 nemaz nav, – nop\u016b\u0161as skolot\u0101ja. Litrs vienm\u0113r ir litrs neatkar\u012bgi no t\u0101, kas ir iepakojum\u0101, bet k\u0101 vi\u0146\u0161 var\u0113tu paskaidrot, cik ml ir litr\u0101?<\/p>\n\n
Skolot\u0101js iznes piena k\u0101rbu, lai par\u0101d\u012btu, k\u0101 saskait\u012bt tilpumu, un paskaidro. Piena k\u0101rbai ir kvadr\u0101tveida apak\u0161da\u013ca. S\u0101nu garums ir 7 cm. Tad gr\u012bdas plat\u012bba ir 49 kvadr\u0101tcentimetri. Cik augsts b\u016bs \u0161\u0137idruma l\u012bmenis, ja iesai\u0146ojum\u0101 ir j\u0101b\u016bt tie\u0161i vienam litram, skolot\u0101js br\u012bn\u0101s. Klas\u0113 iest\u0101jas klusums, bet skolot\u0101ja turpina. Viens litrs ir vien\u0101ds ar 1000 kubikcentimetriem. Kalle, kuram labi padodas pr\u0101ta aritm\u0113tika, pace\u013c roku un saka, ka augstums ir 20,4 cm. Pareizi, – atbild skolot\u0101js, priec\u0101joties, ka vi\u0146a m\u0101c\u012b\u0161anas prasmes ir guvu\u0161as pan\u0101kumus. Vi\u0146\u0161 dom\u0101. Bet cik ml ir litr\u0101, t. i., tikpat, cik 1000 kubikcentimetros?<\/p>\n\n
\u0136\u012bmijas skolot\u0101js beidzot saprot, ka litra p\u0101rv\u0113r\u0161ana kubikcentimetr\u0101 k\u013c\u016bst mazliet lieki sare\u017e\u0123\u012bta. T\u0101p\u0113c vi\u0146\u0161 skaidro, ka milli noz\u012bm\u0113 t\u016bksto\u0161da\u013cu. T\u0101d\u0113j\u0101di mililitrs jeb sa\u012bsin\u0101jum\u0101 ml ir viena t\u016bksto\u0161da\u013ca no litra. T\u0101d\u0113j\u0101di viena litra piena kartona k\u0101rb\u0101 ir 1000 mililitru piena. Tagad skolot\u0101js l\u016bdz Donaldu, kur\u0161 \u0101tri dom\u0101, pateikt, cik ml ir puslitr\u0101. Kalle \u0101tri atbild, ka puslitrs ir 500 mililitri. T\u0101 ir taisn\u012bba, bet k\u0101 j\u016bs to tik \u0101tri noskaidroj\u0101t, – jaut\u0101 ma\u0123istrs. \u0160oreiz ieskat\u012bjos p\u0101rr\u0113\u0137inu tabul\u0101, kas ir pieejama internet\u0101. Vai m\u0113s nevaram izmantot \u0161\u0101das tabulas, nevis veikt daudzus sare\u017e\u0123\u012btus apr\u0113\u0137inus, – jaut\u0101 Kalle. Ambiciozais skolot\u0101js atsak\u0101s un \u013cauj skol\u0113niem turpin\u0101t izmantot p\u0101rr\u0113\u0137inu tabulas.<\/p>\n","protected":false},"excerpt":{"rendered":"
\u0136\u012bmijas skolot\u0101jam ir stunda, un vispirms vi\u0146\u0161 v\u0113las noskaidrot skol\u0113nu iepriek\u0161\u0113j\u0101s zin\u0101\u0161anas par tilpuma un svara m\u0113r\u012bjumiem. Vi\u0146\u0161 s\u0101k ar skaidrojumu, ka \u0137\u012bmijas laboratorij\u0101s skol\u0113niem ir j\u0101sp\u0113j prec\u012bzi samais\u012bt da\u017e\u0101dus \u0161\u0137idrumus prec\u012bz\u0101s proporcij\u0101s. T\u0101p\u0113c vi\u0146\u0161 jaut\u0101, vai k\u0101ds var pateikt, cik ir viens litrs. Tas ir tikpat daudz, cik piena kast\u012bt\u0113, saka viens students. Skolot\u0101js […]<\/p>\n","protected":false},"author":2,"featured_media":2506,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[124],"tags":[],"class_list":["post-3322","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blogs"],"yoast_head":"\n