Pengaruh Bermain Pohon Hitung terhadap Kemampuan Konsep Bilangan pada Anak Usia 5-6 Tahun di Kelompok Bermain Sabrina Kid's 2 Kecamatan Senapelan Kota Pekanbaru

The aim of this study was to know the effect of tree games count towards the introduction of the concept of number of children aged 5-6 years in preschool Sabrina Kid's.2 Senapelan District Pekanbaru .. The population in this study were children aged 5-6 years which consists of class A amounted to 15 people and consists of 7 men and 8 women, the sampling technique used is saturated samples. Data analysis techniques used in this research is the analysis of the t-test, to see the effect of tree games count towards the ability to know the concept of numbers before and after treatment . Data collection techniques in this study using observations. Data analysis techniques used in this research is the analysis of the t-test, to see the effect of tree games count towards kemampuanmengenal concept of numbers before and after treatment using SPSS forwindows Ver.17. based on the results of hypothesis testing is done, the result that the media tree count has a significant impact on the improvement of the ability to know the concept of numbers in children aged 5-6 years in kelompokbermain Sabrina kid's 2 Kecamata Senapelan, Pekanbaru. It can be seen from the results of tests of significance of this difference with the t statistic obtained t = 32.470, df = 14, and the error level of 5% = 2,145, then there is a table t in standard error (32.470> 2.145). Based on the test N-Gain, administration methods Calculate Trees big influence on the ability concept Numbers In children age 5-6 years in early childhood Sabrina kid's 2 Senapelan District, with a value of 76.60% Gain Score

Tracing the Hercules stream with Gaia and LAMOST: new evidence for a fast bar in the Milky Way

The length and pattern speed of the Milky Way bar are still controversial. Photometric and spectroscopic surveys of the inner Galaxy, as well as gas kinematics, favour a long and slowly rotating bar, with corotation around a Galactocentric radius of 6 kpc. On the other hand, the existence of the Hercules stream in local velocity space favours a short and fast bar with corotation around 4 kpc. This follows from the fact that the Hercules stream looks like a typical signature of the outer Lindblad resonance of the bar. As we showed recently, reconciling this local stream with a slow bar would need to find a yet unknown alternative explanation, based for instance on the effect of spiral arms. Here, by combining the TGAS catalogue of the Gaia DR1 with LAMOST radial velocities, we show that the position of Hercules in velocity space as a function of radius in the outer Galaxy indeed varies exactly as predicted by fast bar models with a pattern speed no less than 1.8 times the circular frequency at the Sun's position

Pengaruh Media Pohon Huruf Terhadap Kemampuan Membaca Huruf Hijayyah Pada Anak Usia 5-6 Tahun Di Tk Islam Bakti II Kecamatan Tenayan Raya Kota Pekanbaru

The purpose of this study was to know the influence of the media tree letter to the child's ability to read letters hijaiyah in children aged 5-6 years in TK Islam Bakti II. The population in this study is children aged 5-6 years which consists of class A, amounting to 16 people and consists of 9 men and 7 women, the sampling technique used is saturated samples. Data analysis techniques used in this research is the analysis of the t-test, to see the influence of the media tree letter to the child's ability to read letters hijaiyah in children aged 5-6 years in TK Islam Bakti II. Data collection techniques in this study using observations. Data analysis techniques used in this research is the analysis of the t-test, to see the effect of tree games count towards kemampuanmengenal concept of numbers before and after treatment using SPSS forwindows Ver.17. based on the results of hypothesis testing is done, the result that the letter hijaiyyah tree media has a significant influence on improved reading skills hijaiyyah letter in children aged 5-6 years in TK Islam Bakti II District Tenayan Raya Pekanbaru. It can be seen from the results of tests of significance of this difference with the t statistic obtained t = 34.473, df = 15, and the error level of 5% = 2,042, then there is a table t in standard error (34.473> 2.042). Thus Ho rejected and Ha accepted. Results of the research hypothesis test results from the sample correlation, with a value before and after, significant value is 0,001. Therefore p <0.05 (0.001 <0.05)

Pengaruh Permainan Kubus Bergambar terhadap Kemampuan Berhitung Permulaan Anak Usia 5-6 Tahun di Ra Al Ubudiyah Pekanbaru

This study aimed to determine the effect of the display cube games count kemapuan beginning 5-6 years old children in RA Al Ubudiyah. The population in this study were all children aged 5-6 years in school RA Al Ubudiyah Pekanbaru 2nd semester class B TP 2015/2016. The sample in this study is a first class consisting of 5 girls and 17 boys. A total of 22 children in a class B RA Al Ubudiyah participated in this study. This research is a Pre-Experiment by using design One Group Pretest Posttest that the sample was given an early test in advance to determine the ability of an earlier pilot then treated, after being given the treatment were then given a final test, thus the results of the treatment can be known more mutually agree because it can be compared with the situation before and after being treated. Data collection techniques were used that observation. Data analysis technique using large-scale testing and analysis of statistical methods with SPSS for Windows Ver. 20. Based on the results obtained by testing the hypothesis that there is influence sigifikan the beginning numeracy skills of children aged 5-6 years after using the game cube display. N-Gain is the difference between the pretest and posttest. Gain score indicates Tertiary treatment effectiveness. Based on the above results obtained mean value G 50.97% Game Cube display big influence on numeracy skills children aged 5-6 years beginning at RA Al Ubudiyah Pekanbaru

Impacts of a Flaring Star-forming Disc and Stellar Radial Mixing on the Vertical Metallicity Gradient

Using idealised N-body simulations of a Milky Way-sized disc galaxy, we qualitatively study how the metallicity distributions of the thin disc star particles are modified by the formation of the bar and spiral arm structures. The thin disc in our numerical experiments initially has a tight negative radial metallicity gradient and a constant vertical scale-height. We show that the radial mixing of stars drives a positive vertical metallicity gradient in the thin disc. On the other hand, if the initial thin disc is flared, with vertical scale-height increasing with galactocentric radius, the metal poor stars originally in the outer disc become dominant in regions above the disc plane at every radii. This process can drive a negative vertical metallicity gradient, which is consistent with the current observed trend. This model mimics a scenario where the star-forming thin disc was flared in the outer region at earlier epochs. Our numerical experiment with an initial flared disc predicts that the negative vertical metallicity gradient of the mono-age relatively young thin disc population should be steeper in the inner disc, and the radial metallicity gradient of the mono-age population should be shallower at greater heights above the disc plane. We also predict that the metallicity distribution function of mono-age young thin disc populations above the disc plane would be more positively skewed in the inner disc compared to the outer disc

Stars with fast Galactic rotation observed in Gaia TGAS: a signature driven by the Perseus arm?

We report on the detection of a small overdensity of stars in velocity space with systematically higher Galactocentric rotation velocity than the Sun by about 20 km s$^{-1}$ in the $Gaia$ Data Release 1 Tycho-Gaia astrometric solution (TGAS) data. We find these fast Galactic rotators more clearly outside of the Solar radius, compared to inside of the Solar radius. In addition, the velocity of the fast Galactic rotators is independent of the Galactocentric distance up to $R-R_{\odot}\sim0.6$ kpc. Comparing with numerical models, we qualitatively discuss that a possible cause of this feature is the co-rotation resonance of the Perseus spiral arm, where the stars in peri-centre phase in the trailing side of the Perseus spiral arm experience an extended period of acceleration owing to the torque from the Perseus arm

Stellar Motion around Spiral Arms: Gaia Mock Data

We compare the stellar motion around a spiral arm created in two different scenarios, transient/co-rotating spiral arms and density-wave-like spiral arms. We generate Gaia mock data from snapshots of the simulations following these two scenarios using our stellar population code, SNAPDRAGONS, which takes into account dust extinction and the expected Gaia errors. We compare the observed rotation velocity around a spiral arm similar in position to the Perseus arm, and find that there is a clear difference in the velocity features around the spiral arm between the co-rotating spiral arm and the density-wave-like spiral arm. Our result demonstrates that the volume and accuracy of the Gaia data are sufficient to clearly distinguish these two scenarios of the spiral arms